Quarterly report pursuant to Section 13 or 15(d)

Segment Analysis - Schedule of Segment Reporting Information (Details)

Segment Analysis - Schedule of Segment Reporting Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017	Oct. 31, 2017
Revenues from External Customers	$ 3,526,396	$ 5,278,758	$ 6,576,953	$ 10,636,961
Cost of Revenues	940,858	2,013,940	1,886,965	3,996,985
Gross Profit	2,585,538	3,264,818	4,689,988	6,639,976
Research & Development	640,477	247,758	1,311,016	498,988
Selling, General & Administrative	2,025,630	1,639,892	3,531,387	3,045,780
Total Operating Expenses	2,666,107	1,887,650	4,842,403	3,544,768
Operating Income (Loss)	(80,569)	1,377,168	(152,415)	3,095,208
Other Income	84,015	86,643	90,670	136,059
Interest (Expense) Income	(80,741)	(188,847)	(183,489)	(384,341)
Total other income (expense)	3,274	(102,204)	(92,819)	(248,282)
Income (Loss) before income taxes	(77,295)	1,274,964	(245,234)	2,846,926
Income tax benefit (expense)	(30)		(30)
Net (loss) income	(77,325)	1,274,964	(245,264)	2,846,926
Total Assets	23,942,173	25,158,045	23,942,173	25,158,045	$ 24,060,073
Total Liabilities	4,137,600	11,478,219	4,137,600	11,478,219	$ 10,232,653
Revenues from Intercompany Sales - eliminated from sales above	1,123,791	794,591	1,156,407	1,146,218
Depreciation and Amortization	190,677	219,962	396,056	396,361
Purchases of Long-lived Assets	82,953	670,455	521,594	2,350,566
USA [Member]
Revenues from External Customers	1,934,365	2,525,908	3,021,991	5,275,675
Europe [Member]
Revenues from External Customers	1,476,668	2,614,897	3,298,704	4,631,934
Australia [Member]
Revenues from External Customers	115,363	137,953	256,258	729,352
Marine Technology Business (Products) [Member]
Revenues from External Customers	2,173,291	3,299,545	4,216,233	5,750,144
Cost of Revenues	217,222	968,908	647,353	1,698,926
Gross Profit	1,956,069	2,330,637	3,568,880	4,051,218
Research & Development	503,518	247,758	945,792	498,988
Selling, General & Administrative	850,521	830,121	1,428,086	1,404,770
Total Operating Expenses	1,354,039	1,077,879	2,373,878	1,903,758
Operating Income (Loss)	602,030	1,252,758	1,195,002	2,147,460
Other Income	81,918	86,643	88,573	136,059
Interest (Expense) Income	(2,385)	(181,806)	(6,804)	(532,141)
Total other income (expense)	79,533	(95,163)	81,769	(396,082)
Income (Loss) before income taxes	681,563	1,157,595	1,276,771	1,751,378
Income tax benefit (expense)	(6,431)		(6,596)
Net (loss) income	675,132	1,157,595	1,270,175	1,751,378
Total Assets	12,455,194	12,119,417	12,455,194	12,119,417
Total Liabilities	763,339	1,223,741	763,339	1,223,741
Revenues from Intercompany Sales - eliminated from sales above	315,954	505,660	471,218	678,513
Depreciation and Amortization	113,923	145,800	236,650	247,263
Purchases of Long-lived Assets	52,112	643,603	254,029	2,289,063
Marine Engineering Business (Services) [Member]
Revenues from External Customers	1,353,105	1,979,213	2,360,720	4,886,817
Cost of Revenues	723,636	1,045,032	1,239,612	2,298,059
Gross Profit	629,469	934,181	1,121,108	2,588,758
Research & Development	136,959		365,224
Selling, General & Administrative	614,718	655,560	1,245,592	1,341,971
Total Operating Expenses	751,677	655,560	1,610,816	1,341,971
Operating Income (Loss)	(122,208)	278,621	(489,708)	1,246,787
Other Income	2,097		2,097
Interest (Expense) Income	(14,752)	(75,001)	(29,701)	(199,223)
Total other income (expense)	(12,655)	(75,001)	(27,604)	(199,223)
Income (Loss) before income taxes	(134,863)	203,620	(517,312)	1,047,564
Income tax benefit (expense)
Net (loss) income	(134,863)	203,620	(517,312)	1,047,564
Total Assets	10,944,045	12,616,569	10,944,045	12,616,569
Total Liabilities	1,435,771	1,654,104	1,435,771	1,654,104
Revenues from Intercompany Sales - eliminated from sales above	132,837	170,056	10,189	229,955
Depreciation and Amortization	72,499	71,056	152,214	142,781
Purchases of Long-lived Assets	6,056	26,852	49,961	49,033
Overhead [Member]
Revenues from External Customers
Cost of Revenues
Gross Profit
Research & Development
Selling, General & Administrative	560,391	154,211	857,709	299,039
Total Operating Expenses	560,391	154,211	857,709	299,039
Operating Income (Loss)	(560,391)	(154,211)	(857,709)	(299,039)
Other Income
Interest (Expense) Income	(63,604)	67,960	(146,984)	347,023
Total other income (expense)	(63,604)	67,960	(146,984)	347,023
Income (Loss) before income taxes	(623,995)	(86,251)	(1,004,693)	47,984
Income tax benefit (expense)	6,401		6,566
Net (loss) income	(617,594)	(86,251)	(998,127)	47,984
Total Assets	342,932	422,059	342,932	422,059
Total Liabilities	1,938,490	8,600,374	1,938,490	8,600,374
Revenues from Intercompany Sales - eliminated from sales above	675,000	118,875	675,000	237,750
Depreciation and Amortization	4,255	3,106	7,192	6,317
Purchases of Long-lived Assets	$ 24,785		$ 24,785	$ 12,470