| Schedule of Segment Reporting Information | 
 The Company evaluates performance and allocates
resources based upon operating income. The accounting policies of the reportable segments are the same as those described in the
summary of accounting policies. There are inter-segment sales which have been removed upon consolidation and for the purposes of
the information shown below. 
  
    |   | 
      | 
    Marine Technology Business (Products) | 
      | 
      | 
    Marine Engineering Business (Services) | 
      | 
      | 
    Overhead | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Year Ended October 31, 2017 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from External Customers | 
      | 
    $ | 
    10,986,268 | 
      | 
      | 
    $ | 
    7,038,905 | 
      | 
      | 
    $ | 
    - | 
      | 
      | 
    $ | 
    18,025,173 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Cost of Revenues | 
      | 
      | 
    2,246,881 | 
      | 
      | 
      | 
    3,810,567 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    6,057,448 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Gross Profit | 
      | 
      | 
    8,739,387 | 
      | 
      | 
      | 
    3,228,338 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    11,967,725 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Research & Development | 
      | 
      | 
    919,863 | 
      | 
      | 
      | 
    460,518 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    1,380,381 | 
      | 
 
    | Selling, General & Administrative | 
      | 
      | 
    3,220,635 | 
      | 
      | 
      | 
    2,714,054 | 
      | 
      | 
      | 
    834,638 | 
      | 
      | 
      | 
    6,769,327 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Operating Expenses | 
      | 
      | 
    4,140,498 | 
      | 
      | 
      | 
    3,174,572 | 
      | 
      | 
      | 
    834,638 | 
      | 
      | 
      | 
    8,149,708 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Operating Income (Loss) | 
      | 
      | 
    4,598,889 | 
      | 
      | 
      | 
    53,766 | 
      | 
      | 
      | 
    (834,638 | 
    ) | 
      | 
      | 
    3,818,017 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income (Expense) | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income | 
      | 
      | 
    117,106 | 
      | 
      | 
      | 
    4,172 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    121,278 | 
      | 
 
    | Interest (Expense) Income | 
      | 
      | 
    (709,763 | 
    ) | 
      | 
      | 
    (56,697 | 
    ) | 
      | 
      | 
    169,449 | 
      | 
      | 
      | 
    (597,011 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total other income (expense) | 
      | 
      | 
    (592,657 | 
    ) | 
      | 
      | 
    (52,525 | 
    ) | 
      | 
      | 
    169,449 | 
      | 
      | 
      | 
    (475,733 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income (Loss) before income taxes | 
      | 
      | 
    4,006,232 | 
      | 
      | 
      | 
    1,241 | 
      | 
      | 
      | 
    (665,189 | 
    ) | 
      | 
      | 
    3,342,284 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income tax benefit (expense) | 
      | 
      | 
    22,578 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    (25,199 | 
    ) | 
      | 
      | 
    (2,621 | 
    )  | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Net Income (Loss) | 
      | 
    $ | 
    4,028,810 | 
      | 
      | 
    $ | 
    1,241 | 
      | 
      | 
    $ | 
    (690,388 | 
    ) | 
      | 
    $ | 
    3,339,663 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Supplemental Disclosures | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Assets | 
      | 
    $ | 
    12,374,214 | 
      | 
      | 
    $ | 
    11,479,953 | 
      | 
      | 
    $ | 
    205,906 | 
      | 
      | 
    $ | 
    24,060,073 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Liabilities | 
      | 
      | 
    1,109,003 | 
      | 
      | 
      | 
    1,475,442 | 
      | 
      | 
      | 
    7,648,208 | 
      | 
      | 
      | 
    10,232,653 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from Intercompany Sales - eliminated from sales above | 
      | 
      | 
    1,895,015 | 
      | 
      | 
      | 
    387,142 | 
      | 
      | 
      | 
    1,797,775 | 
      | 
      | 
      | 
    4,079,932 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Depreciation and Amortization | 
      | 
      | 
    528,667 | 
      | 
      | 
      | 
    412,220 | 
      | 
      | 
      | 
    12,739 | 
      | 
      | 
      | 
    953,626 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Purchases of Long-lived Assets | 
      | 
      | 
    2,419,093 | 
      | 
      | 
      | 
    129,989 | 
      | 
      | 
      | 
    12,470 | 
      | 
      | 
      | 
    2,561,552 | 
      | 
 
 
  
    |   | 
      | 
    Marine Technology Business (Products) | 
      | 
      | 
    Marine Engineering Business (Services) | 
      | 
      | 
    Overhead | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Year Ended October 31, 2016 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from External Customers | 
      | 
    $ | 
    10,584,141 | 
      | 
      | 
    $ | 
    10,534,178 | 
      | 
      | 
    $ | 
    - | 
      | 
      | 
    $ | 
    21,118,319 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Cost of Revenues | 
      | 
      | 
    3,081,892 | 
      | 
      | 
      | 
    5,383,430 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    8,465,322 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Gross Profit | 
      | 
      | 
    7,502,249 | 
      | 
      | 
      | 
    5,150,748 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    12,652,997 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Research & Development | 
      | 
      | 
    1,013,125 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    1,013,125 | 
      | 
 
    | Selling, General & Administrative | 
      | 
      | 
    2,848,809 | 
      | 
      | 
      | 
    2,785,195 | 
      | 
      | 
      | 
    467,223 | 
      | 
      | 
      | 
    6,101,227 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Operating Expenses | 
      | 
      | 
    3,861,934 | 
      | 
      | 
      | 
    2,785,195 | 
      | 
      | 
      | 
    467,223 | 
      | 
      | 
      | 
    7,114,352 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Operating Income (Loss) | 
      | 
      | 
    3,640,315 | 
      | 
      | 
      | 
    2,365,553 | 
      | 
      | 
      | 
    (467,223 | 
    ) | 
      | 
      | 
    5,538,645 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income (Expense) | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Other Income | 
      | 
      | 
    166,449 | 
      | 
      | 
      | 
    5,641 | 
      | 
      | 
      | 
    - | 
      | 
      | 
      | 
    172,090 | 
      | 
 
    | Interest Expense | 
      | 
      | 
    (813,402 | 
    ) | 
      | 
      | 
    (277,875 | 
    ) | 
      | 
      | 
    234,845 | 
      | 
      | 
      | 
    (856,432 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total other income (expense) | 
      | 
      | 
    (646,953 | 
    ) | 
      | 
      | 
    (272,234 | 
    ) | 
      | 
      | 
    234,845 | 
      | 
      | 
      | 
    (684,342 | 
    ) | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income (Loss) before income taxes | 
      | 
      | 
    2,993,362 | 
      | 
      | 
      | 
    2,093,319 | 
      | 
      | 
      | 
    (232,378 | 
    ) | 
      | 
      | 
    4,854,303 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Income tax benefit (expense) | 
      | 
      | 
    139,619 | 
      | 
      | 
      | 
    (39,783 | 
    ) | 
      | 
      | 
    (23,591 | 
    ) | 
      | 
      | 
    76,245 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Net Income (Loss) | 
      | 
    $ | 
    3,132,981 | 
      | 
      | 
    $ | 
    2,053,536 | 
      | 
      | 
    $ | 
    (255,969 | 
    ) | 
      | 
    $ | 
    4,930,548 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Supplemental Disclosures | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Assets | 
      | 
    $ | 
    11,649,606 | 
      | 
      | 
    $ | 
    10,883,182 | 
      | 
      | 
    $ | 
    302,732 | 
      | 
      | 
    $ | 
    22,835,520 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Total Liabilities | 
      | 
      | 
    1,381,048 | 
      | 
      | 
      | 
    1,019,074 | 
      | 
      | 
      | 
    10,280,885 | 
      | 
      | 
      | 
    12,681,007 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Revenues from Intercompany Sales - eliminated from sales above | 
      | 
      | 
    1,871,801 | 
      | 
      | 
      | 
    330,098 | 
      | 
      | 
      | 
    1,164,250 | 
      | 
      | 
      | 
    3,366,149 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Depreciation and Amortization | 
      | 
      | 
    503,327 | 
      | 
      | 
      | 
    293,219 | 
      | 
      | 
      | 
    12,831 | 
      | 
      | 
      | 
    809,377 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Purchases of Long-lived Assets | 
      | 
      | 
    604,607 | 
      | 
      | 
      | 
    (2,857 | 
    ) | 
      | 
      | 
    12,470 | 
      | 
      | 
      | 
    614,220 | 
      | 
 
 
  
Information concerning principal geographic
areas is presented below according to the area where the activity has taken place for the years ended October 31, 2017 and 2016,
respectively: 
  
    |   | 
      | 
    USA | 
      | 
      | 
    Europe | 
      | 
      | 
    Australia | 
      | 
      | 
    Total | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | External Revenues by Geographic Locations | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Year Ended October 31, 2017 | 
      | 
    $ | 
    7,499,900 | 
      | 
      | 
    $ | 
    9,056,589 | 
      | 
      | 
    $ | 
    1,468,684 | 
      | 
      | 
    $ | 
    18,025,173 | 
      | 
 
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
 
    | Year Ended October 31, 2016 | 
      | 
    $ | 
    11,116,336 | 
      | 
      | 
    $ | 
    8,398,768 | 
      | 
      | 
    $ | 
    1,603,215 | 
      | 
      | 
    $ | 
    21,118,319 | 
      | 
 
 
 |