Quarterly report pursuant to Section 13 or 15(d)

Segment Analysis - Schedule of Disaggregate of Revenue from Contracts for Sale with Customers by Geographic Location (Details)

Segment Analysis - Schedule of Disaggregate of Revenue from Contracts for Sale with Customers by Geographic Location (Details) - USD ($)	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Total net sales	$ 6,680,979	$ 5,758,508
Equipment Sales [Member]
Total net sales	2,722,919	1,674,737
Equipment Rentals [Member]
Total net sales	323,645	507,920
Software Sales [Member]
Total net sales	229,775	254,151
Engineering Parts [Member]
Total net sales	2,553,229	2,512,134
Services [Member]
Total net sales	851,411	809,566
Americas [Member]
Total net sales	2,677,237	2,693,913
Americas [Member] \| Equipment Sales [Member]
Total net sales	334,388	50,559
Americas [Member] \| Equipment Rentals [Member]
Total net sales	45,069	53,483
Americas [Member] \| Software Sales [Member]
Total net sales	7,250
Americas [Member] \| Engineering Parts [Member]
Total net sales	1,646,374	2,190,192
Americas [Member] \| Services [Member]
Total net sales	644,156	399,679
Europe [Member]
Total net sales	1,531,279	1,133,844
Europe [Member] \| Equipment Sales [Member]
Total net sales	338,147	421,386
Europe [Member] \| Equipment Rentals [Member]
Total net sales	52,644	160,389
Europe [Member] \| Software Sales [Member]
Total net sales	102,526	89,575
Europe [Member] \| Engineering Parts [Member]
Total net sales	906,855	321,942
Europe [Member] \| Services [Member]
Total net sales	131,107	140,552
Australia/Asia [Member]
Total net sales	2,421,360	1,817,201
Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales	2,028,310	1,192,319
Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales	225,932	257,918
Australia/Asia [Member] \| Software Sales [Member]
Total net sales	119,999	143,589
Australia/Asia [Member] \| Services [Member]
Total net sales	47,119	223,375
Middle East & Africa [Member]
Total net sales	51,103	113,550
Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales	22,074	10,473
Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales		36,130
Middle East & Africa [Member] \| Software Sales [Member]
Total net sales		20,987
Middle East & Africa [Member] \| Services [Member]
Total net sales	29,029	45,960
Marine Technology Business (Products) [Member]
Total net sales	3,632,812	2,829,536
Marine Technology Business (Products) [Member] \| Equipment Sales [Member]
Total net sales	2,722,919	1,574,051
Marine Technology Business (Products) [Member] \| Equipment Rentals [Member]
Total net sales	323,645	507,920
Marine Technology Business (Products) [Member] \| Software Sales [Member]
Total net sales	229,775	254,151
Marine Technology Business (Products) [Member] \| Engineering Parts [Member]
Total net sales
Marine Technology Business (Products) [Member] \| Services [Member]
Total net sales	356,473	493,414
Marine Technology Business (Products) [Member] \| Americas [Member]
Total net sales	541,332	184,560
Marine Technology Business (Products) [Member] \| Americas [Member] \| Equipment Sales [Member]
Total net sales	334,388	47,550
Marine Technology Business (Products) [Member] \| Americas [Member] \| Equipment Rentals [Member]
Total net sales	45,069	53,483
Marine Technology Business (Products) [Member] \| Americas [Member] \| Software Sales [Member]
Total net sales	7,250
Marine Technology Business (Products) [Member] \| Americas [Member] \| Engineering Parts [Member]
Total net sales
Marine Technology Business (Products) [Member] \| Americas [Member] \| Services [Member]
Total net sales	154,625	83,527
Marine Technology Business (Products) [Member] \| Europe [Member]
Total net sales	619,017	714,225
Marine Technology Business (Products) [Member] \| Europe [Member] \| Equipment Sales [Member]
Total net sales	338,147	323,709
Marine Technology Business (Products) [Member] \| Europe [Member] \| Equipment Rentals [Member]
Total net sales	52,644	160,389
Marine Technology Business (Products) [Member] \| Europe [Member] \| Software Sales [Member]
Total net sales	102,526	89,575
Marine Technology Business (Products) [Member] \| Europe [Member] \| Engineering Parts [Member]
Total net sales
Marine Technology Business (Products) [Member] \| Europe [Member] \| Services [Member]
Total net sales	125,700	140,552
Marine Technology Business (Products) [Member] \| Australia/Asia [Member]
Total net sales	2,421,360	1,817,201
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales	2,028,310	1,192,319
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales	225,932	257,918
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Software Sales [Member]
Total net sales	119,999	143,589
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Services [Member]
Total net sales	47,119	223,375
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member]
Total net sales	51,103	113,550
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales	22,074	10,473
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales		36,130
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Software Sales [Member]
Total net sales		20,987
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Services [Member]
Total net sales	29,029	45,960
Marine Engineering Business (Services) [Member]
Total net sales	3,048,167	2,928,972
Marine Engineering Business (Services) [Member] \| Equipment Sales [Member]
Total net sales		100,686
Marine Engineering Business (Services) [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Engineering Parts [Member]
Total net sales	2,553,229	2,512,134
Marine Engineering Business (Services) [Member] \| Services [Member]
Total net sales	494,938	316,152
Marine Engineering Business (Services) [Member] \| Americas [Member]
Total net sales	2,135,905	2,509,353
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Equipment Sales [Member]
Total net sales		3,009
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Engineering Parts [Member]
Total net sales	1,646,374	2,190,192
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Services [Member]
Total net sales	489,531	316,152
Marine Engineering Business (Services) [Member] \| Europe [Member]
Total net sales	912,262	419,619
Marine Engineering Business (Services) [Member] \| Europe [Member] \| Equipment Sales [Member]
Total net sales		97,677
Marine Engineering Business (Services) [Member] \| Europe [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Europe [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Europe [Member] \| Engineering Parts [Member]
Total net sales	906,855	321,942
Marine Engineering Business (Services) [Member] \| Europe [Member] \| Services [Member]
Total net sales	5,407
Marine Engineering Business (Services) [Member] \| Australia/Asia [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Australia/Asia [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Australia/Asia [Member] \| Services [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Middle East & Africa [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Middle East & Africa [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business (Services) [Member] \| Middle East & Africa [Member] \| Services [Member]
Total net sales