| Schedule of Segment Reporting Information | 
 Information concerning principal
geographic areas is presented below according to the area where the activity has taken place for the three and six months ended
April 30, 2017 and 2016 respectively: 
  
    |   | 
      | 
    
         Marine 
        Technology 
        Business 
        (Products) 
 | 
      | 
      | 
    
         Marine 
        Engineering 
        Business 
        (Services) 
 | 
      | 
      | 
    Overhead | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Three Months Ended April 30, 2017 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from External Customers | 
      | 
    $ | 
    3,299,545 | 
      | 
      | 
    $ | 
    1,979,213 | 
      | 
      | 
    $ | 
    - | 
      | 
      | 
    $ | 
    5,278,758 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Cost of Revenues | 
      | 
      | 
    968,908 | 
      | 
      | 
      | 
    1,045,032 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    2,013,940 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Gross Profit | 
      | 
      | 
    2,330,638 | 
      | 
      | 
      | 
    934,181 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    3,264,818 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Research & Development | 
      | 
      | 
    247,758 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    247,758 | 
      | 
 
    | Selling, General & Administrative | 
      | 
      | 
    830,121 | 
      | 
      | 
      | 
    655,560 | 
      | 
      | 
      | 
    154,211 | 
      | 
      | 
      | 
    1,639,892 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Operating Income (Loss) | 
      | 
      | 
    1,252,758 | 
      | 
      | 
      | 
    278,621 | 
      | 
      | 
      | 
    (154,211 | 
    ) | 
      | 
      | 
    1,377,168 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income (Expense) | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income | 
      | 
      | 
    86,643 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    86,643 | 
      | 
 
    | Interest Expense | 
      | 
      | 
    (181,806 | 
    ) | 
      | 
      | 
    (75,002 | 
    ) | 
      | 
      | 
    67,961 | 
      | 
      | 
      | 
    (188,847 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total other income (expense) | 
      | 
      | 
    (95,163 | 
    ) | 
      | 
      | 
    (75,002 | 
    ) | 
      | 
      | 
    67,961 | 
      | 
      | 
      | 
    (102,204 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income before income taxes | 
      | 
      | 
    1,157,595 | 
      | 
      | 
      | 
    203,619 | 
      | 
      | 
      | 
    (86,250 | 
    ) | 
      | 
      | 
    1,274,964 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income tax benefit (expense) | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Net Income | 
      | 
    $ | 
    1,157,595 | 
      | 
      | 
    $ | 
    203,620 | 
      | 
      | 
    $ | 
    (86,249 | 
    ) | 
      | 
    $ | 
    1,274,964 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Supplemental Disclosures | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Assets | 
      | 
    $ | 
    12,119,417 | 
      | 
      | 
    $ | 
    12,616,569 | 
      | 
      | 
    $ | 
    422,059 | 
      | 
      | 
    $ | 
    25,158,045 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Liabilities | 
      | 
      | 
    1,223,741 | 
      | 
      | 
      | 
    1,654,104 | 
      | 
      | 
      | 
    8,600,374 | 
      | 
      | 
      | 
    11,478,219 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from Intercompany Sales - eliminated from sales above | 
      | 
      | 
    505,660 | 
      | 
      | 
      | 
    170,056 | 
      | 
      | 
      | 
    118,875 | 
      | 
      | 
      | 
    794,591 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Depreciation and Amortization | 
      | 
      | 
    145,800 | 
      | 
      | 
      | 
    71,056 | 
      | 
      | 
      | 
    3,106 | 
      | 
      | 
      | 
    219,962 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Purchases of Long-lived Assets | 
      | 
      | 
    643,603 | 
      | 
      | 
      | 
    26,852 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    670,455 | 
      | 
 
 
  
    |   | 
      | 
    
         Marine 
        Technology 
        Business 
        (Products) 
 | 
      | 
      | 
    
         Marine 
        Engineering 
        Business 
        (Services) 
 | 
      | 
      | 
    Overhead | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Three Months Ended April 30, 2016 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from External Customers | 
      | 
    $ | 
    2,397,476 | 
      | 
      | 
    $ | 
    3,348,499 | 
      | 
      | 
    $ | 
    - | 
      | 
      | 
    $ | 
    5,745,975 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Cost of Revenues | 
      | 
      | 
    707,906 | 
      | 
      | 
      | 
    1,528,945 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    2,236,851 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Gross Profit | 
      | 
      | 
    1,689,570 | 
      | 
      | 
      | 
    1,819,554 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    3,509,124 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Research & Development | 
      | 
      | 
    186,991 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    186,991 | 
      | 
 
    | Selling, General & Administrative | 
      | 
      | 
    737,049 | 
      | 
      | 
      | 
    785,557 | 
      | 
      | 
      | 
    80,948 | 
      | 
      | 
      | 
    1,603,554 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Operating Income (Loss) | 
      | 
      | 
    765,530 | 
      | 
      | 
      | 
    1,033,997 | 
      | 
      | 
      | 
    (80,948 | 
    ) | 
      | 
      | 
    1,718,579 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income (Expense) | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income | 
      | 
      | 
    33,847 | 
      | 
      | 
      | 
    (77 | 
    ) | 
      | 
      | 
    - | 
      | 
      | 
      | 
    33,770 | 
      | 
 
    | Interest Expense | 
      | 
      | 
    (113,891 | 
    ) | 
      | 
      | 
    (56,490 | 
    ) | 
      | 
      | 
    565 | 
      | 
      | 
      | 
    (169,816 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total other income (expense) | 
      | 
      | 
    (80,044 | 
    ) | 
      | 
      | 
    (56,567 | 
    ) | 
      | 
      | 
    565 | 
      | 
      | 
      | 
    (136,046 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income (Loss) before income taxes | 
      | 
      | 
    685,486 | 
      | 
      | 
      | 
    977,430 | 
      | 
      | 
      | 
    (80,383 | 
    ) | 
      | 
      | 
    1,582,533 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income tax benefit (expense) | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Net Income (Loss) | 
      | 
    $ | 
    685,486 | 
      | 
      | 
    $ | 
    977,430 | 
      | 
      | 
    $ | 
    (80,383 | 
    ) | 
      | 
    $ | 
    1,582,533 | 
      | 
 
    | Supplemental Disclosures | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Assets | 
      | 
    $ | 
    12,659,049 | 
      | 
      | 
    $ | 
    10,000,625 | 
      | 
      | 
    $ | 
    207,752 | 
      | 
      | 
    $ | 
    22,867,426 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Liabilities | 
      | 
      | 
    1,375,795 | 
      | 
      | 
      | 
    830,979 | 
      | 
      | 
      | 
    11,745,611 | 
      | 
      | 
      | 
    13,952,385 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from Intercompany Sales - eliminated from sales above | 
      | 
      | 
    222,010 | 
      | 
      | 
      | 
    70,405 | 
      | 
      | 
      | 
    118,875 | 
      | 
      | 
      | 
    411,290 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Depreciation and Amortization | 
      | 
      | 
    41,178 | 
      | 
      | 
      | 
    83,365 | 
      | 
      | 
      | 
    3,078 | 
      | 
      | 
      | 
    127,621 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Purchases of Long-lived Assets | 
      | 
      | 
    873,269 | 
      | 
      | 
      | 
    (10,175 | 
    ) | 
      | 
      | 
    8,868 | 
      | 
      | 
      | 
    871,962 | 
      | 
 
 
  
    |   | 
      | 
    
         Marine 
        Technology 
        Business 
        (Products) 
 | 
      | 
      | 
    
         Marine 
        Engineering 
        Business 
        (Services) 
 | 
      | 
      | 
    Overhead | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Six Months Ended April 30, 2017 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from External Customers | 
      | 
    $ | 
    5,750,144 | 
      | 
      | 
    $ | 
    4,886,817 | 
      | 
      | 
    $ | 
    - | 
      | 
      | 
    $ | 
    10,636,961 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Cost of Revenues | 
      | 
      | 
    1,698,926 | 
      | 
      | 
      | 
    2,298,059 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    3,996,985 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Gross Profit | 
      | 
      | 
    4,051,218 | 
      | 
      | 
      | 
    2,588,758 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    6,639,976 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Research & Development | 
      | 
      | 
    498,988 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    498,988 | 
      | 
 
    | Selling, General & Administrative | 
      | 
      | 
    1,404,770 | 
      | 
      | 
      | 
    1,341,971 | 
      | 
      | 
      | 
    299,039 | 
      | 
      | 
      | 
    3,045,780 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Operating Income (Loss) | 
      | 
      | 
    2,147,460 | 
      | 
      | 
      | 
    1,246,787 | 
      | 
      | 
      | 
    (299,039 | 
    ) | 
      | 
      | 
    3,095,208 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income (Expense) | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income | 
      | 
      | 
    136,059 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    136,059 | 
      | 
 
    | Interest (Expense) Income | 
      | 
      | 
    (532,141 | 
    ) | 
      | 
      | 
    (199,223 | 
    ) | 
      | 
      | 
    347,023 | 
      | 
      | 
      | 
    (384,341 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total other income (expense) | 
      | 
      | 
    (396,082 | 
    ) | 
      | 
      | 
    (199,223 | 
    ) | 
      | 
      | 
    347,023 | 
      | 
      | 
      | 
    (248,282 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income (Loss) before income taxes | 
      | 
      | 
    1,751,378 | 
      | 
      | 
      | 
    1,047,564 | 
      | 
      | 
      | 
    47,984 | 
      | 
      | 
      | 
    2,846,926 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income tax benefit (expense) | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Net Income | 
      | 
    $ | 
    1,751,378 | 
      | 
      | 
    $ | 
    1,047,564 | 
      | 
      | 
    $ | 
    47,984 | 
      | 
      | 
    $ | 
    2,846,926 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Supplemental Disclosures | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Assets | 
      | 
    $ | 
    12,119,417 | 
      | 
      | 
    $ | 
    12,616,569 | 
      | 
      | 
    $ | 
    422,059 | 
      | 
      | 
    $ | 
    25,158,045 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Liabilities | 
      | 
      | 
    1,223,741 | 
      | 
      | 
      | 
    1,654,104 | 
      | 
      | 
      | 
    8,600,374 | 
      | 
      | 
      | 
    11,478,219 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from Intercompany Sales - eliminated from sales above | 
      | 
      | 
    678,513 | 
      | 
      | 
      | 
    229,955 | 
      | 
      | 
      | 
    237,750 | 
      | 
      | 
      | 
    1,146,218 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Depreciation and Amortization | 
      | 
      | 
    247,263 | 
      | 
      | 
      | 
    142,781 | 
      | 
      | 
      | 
    6,317 | 
      | 
      | 
      | 
    396,361 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Purchases of Long-lived Assets | 
      | 
      | 
    2,289,063 | 
      | 
      | 
      | 
    49,033 | 
      | 
      | 
      | 
    12,470 | 
      | 
      | 
      | 
    2,350,566 | 
      | 
 
 
  
    |   | 
      | 
    
         Marine 
        Technology 
        Business 
        (Products) 
 | 
      | 
      | 
    
         Marine 
        Engineering 
        Business 
        (Services) 
 | 
      | 
      | 
    Overhead | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | For Six Months Ended April 30, 2016 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from External Customers | 
      | 
    $ | 
    5,389,099 | 
      | 
      | 
    $ | 
    5,132,715 | 
      | 
      | 
    $ | 
    - | 
      | 
      | 
    $ | 
    10,521,814 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Cost of Revenues | 
      | 
      | 
    2,068,408 | 
      | 
      | 
      | 
    2,709,592 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    4,778,000 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Gross Profit | 
      | 
      | 
    3,320,691 | 
      | 
      | 
      | 
    2,423,123 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    5,743,814 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Research & Development | 
      | 
      | 
    415,291 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    415,291 | 
      | 
 
    | Selling, General & Administrative | 
      | 
      | 
    1,389,535 | 
      | 
      | 
      | 
    1,570,879 | 
      | 
      | 
      | 
    202,679 | 
      | 
      | 
      | 
    3,163,093 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Operating Income (Loss) | 
      | 
      | 
    1,515,865 | 
      | 
      | 
      | 
    852,244 | 
      | 
      | 
      | 
    (202,679 | 
    ) | 
      | 
      | 
    2,165,430 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income (Expense) | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income | 
      | 
      | 
    99,764 | 
      | 
      | 
      | 
    5,898 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    105,662 | 
      | 
 
    | Interest Expense | 
      | 
      | 
    (285,077 | 
    ) | 
      | 
      | 
    (113,818 | 
    ) | 
      | 
      | 
    (143 | 
    ) | 
      | 
      | 
    (399,038 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total other income (expense) | 
      | 
      | 
    (185,313 | 
    ) | 
      | 
      | 
    (107,920 | 
    ) | 
      | 
      | 
    (143 | 
    ) | 
      | 
      | 
    (293,376 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income (Loss) before income taxes | 
      | 
      | 
    1,330,552 | 
      | 
      | 
      | 
    744,324 | 
      | 
      | 
      | 
    (202,822 | 
    ) | 
      | 
      | 
    1,872,054 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income tax benefit (expense) | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Net Income (Loss) | 
      | 
    $ | 
    1,330,552 | 
      | 
      | 
    $ | 
    744,324 | 
      | 
      | 
    $ | 
    (202,822 | 
    ) | 
      | 
    $ | 
    1,872,054 | 
      | 
 
    | Supplemental Disclosures | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Assets | 
      | 
    $ | 
    12,659,049 | 
      | 
      | 
    $ | 
    10,000,625 | 
      | 
      | 
    $ | 
    207,752 | 
      | 
      | 
    $ | 
    22,867,426 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Liabilities | 
      | 
      | 
    1,375,795 | 
      | 
      | 
      | 
    830,979 | 
      | 
      | 
      | 
    11,745,611 | 
      | 
      | 
      | 
    13,952,385 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from Intercompany Sales - eliminated from sales above | 
      | 
      | 
    356,402 | 
      | 
      | 
      | 
    241,353 | 
      | 
      | 
      | 
    244,000 | 
      | 
      | 
      | 
    841,755 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Depreciation and Amortization | 
      | 
      | 
    125,635 | 
      | 
      | 
      | 
    174,719 | 
      | 
      | 
      | 
    6,432 | 
      | 
      | 
      | 
    306,786 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Purchases of Long-lived Assets | 
      | 
      | 
    719,307 | 
      | 
      | 
      | 
    21,798 | 
      | 
      | 
      | 
    8,868 | 
      | 
      | 
      | 
    749,973 | 
      | 
 
 
  
    |   | 
      | 
    USA | 
      | 
      | 
    Europe | 
      | 
      | 
    Australia | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | External Revenues by Geographic Locations | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Three Months Ended April 30, 2017 | 
      | 
    $ | 
    2,525,908 | 
      | 
      | 
    $ | 
    2,614,898 | 
      | 
      | 
    $ | 
    137,953 | 
      | 
      | 
    $ | 
    5,278,758 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Three Months Ended April 30, 2016 | 
      | 
    $ | 
    3,291,480 | 
      | 
      | 
    $ | 
    2,176,818 | 
      | 
      | 
    $ | 
    277,677 | 
      | 
      | 
    $ | 
    5,745,975 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Six Months Ended April 30, 2017 | 
      | 
    $ | 
    5,275,675 | 
      | 
      | 
    $ | 
    4,631,934 | 
      | 
      | 
    $ | 
    729,352 | 
      | 
      | 
    $ | 
    10,636,961 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Six Months Ended April 30, 2016 | 
      | 
    $ | 
    4,955,901 | 
      | 
      | 
    $ | 
    4,763,447 | 
      | 
      | 
    $ | 
    802,466 | 
      | 
      | 
    $ | 
    10,521,814 | 
      | 
 
 
 |