Annual report pursuant to Section 13 and 15(d)

Segment Analysis - Schedule of Segment Reporting Information (Details)

Segment Analysis - Schedule of Segment Reporting Information (Details) - USD ($)	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Jul. 31, 2016
Revenues from External Customers	$ 18,025,173	$ 21,118,319
Cost of Revenues	6,057,448	8,465,322
Gross Profit	11,967,725	12,652,997
Research & Development	1,380,381	1,013,125
Selling, General & Administrative	6,769,327	6,101,227
Total Operating Expenses	8,149,708	7,114,352
Operating Income (Loss)	3,818,017	5,538,645
Other Income	121,278	172,090
Interest (Expense) Income	(597,011)	(856,432)
Total other income (expense)	(475,733)	(684,342)
Income (Loss) before income taxes	3,342,284	4,854,303
Income tax benefit (expense)	(2,621)	76,245
Net Income (Loss)	3,339,663	4,930,548
Total Assets	24,060,073	22,835,520	$ 22,835,520
Total Liabilities	10,232,653	12,681,007	$ 12,681,007
Revenues from Intercompany Sales - eliminated from sales above	4,079,932	3,366,149
Depreciation and Amortization	953,626	809,377
Purchases of Long-lived Assets	2,561,551	614,220
USA [Member]
Revenues from External Customers	7,499,900	11,116,336
Europe [Member]
Revenues from External Customers	9,056,589	8,398,768
Australia [Member]
Revenues from External Customers	1,468,684	1,603,215
Marine Technology Business (Products) [Member]
Revenues from External Customers	10,986,268	10,584,141
Cost of Revenues	2,246,881	3,081,892
Gross Profit	8,739,387	7,502,249
Research & Development	919,863	1,013,125
Selling, General & Administrative	3,220,635	2,848,809
Total Operating Expenses	4,140,498	3,861,934
Operating Income (Loss)	4,598,889	3,640,315
Other Income	117,106	166,449
Interest (Expense) Income	(709,763)	(813,402)
Total other income (expense)	(592,657)	(646,953)
Income (Loss) before income taxes	4,006,232	2,993,362
Income tax benefit (expense)	22,578	139,619
Net Income (Loss)	4,028,810	3,132,981
Total Assets	12,374,214	11,649,606
Total Liabilities	1,109,003	1,381,048
Revenues from Intercompany Sales - eliminated from sales above	1,895,015	1,871,801
Depreciation and Amortization	528,667	503,327
Purchases of Long-lived Assets	2,419,093	604,607
Marine Engineering Business (Services) [Member]
Revenues from External Customers	7,038,905	10,534,178
Cost of Revenues	3,810,567	5,383,430
Gross Profit	3,228,338	5,150,748
Research & Development	460,518
Selling, General & Administrative	2,714,054	2,785,195
Total Operating Expenses	3,174,572	2,785,195
Operating Income (Loss)	53,766	2,365,553
Other Income	4,172	5,641
Interest (Expense) Income	(56,697)	(277,875)
Total other income (expense)	(52,525)	(272,234)
Income (Loss) before income taxes	1,241	2,093,319
Income tax benefit (expense)		(39,783)
Net Income (Loss)	1,241	2,053,536
Total Assets	11,479,953	10,883,182
Total Liabilities	1,475,442	1,019,074
Revenues from Intercompany Sales - eliminated from sales above	387,142	330,098
Depreciation and Amortization	412,220	293,219
Purchases of Long-lived Assets	129,989	(2,857)
Overhead [Member]
Revenues from External Customers
Cost of Revenues
Gross Profit
Research & Development
Selling, General & Administrative	834,638	467,223
Total Operating Expenses	834,638	467,223
Operating Income (Loss)	(834,638)	(467,223)
Other Income
Interest (Expense) Income	169,449	234,845
Total other income (expense)	169,449	234,845
Income (Loss) before income taxes	(665,189)	(232,378)
Income tax benefit (expense)	(25,199)	(23,591)
Net Income (Loss)	(690,388)	(255,969)
Total Assets	205,906	302,732
Total Liabilities	7,648,208	10,280,885
Revenues from Intercompany Sales - eliminated from sales above	1,797,775	1,164,250
Depreciation and Amortization	12,739	12,831
Purchases of Long-lived Assets	$ 12,470	$ 12,470