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, 2019	Jan. 31, 2018
Total net sales	$ 5,758,508	$ 3,050,557
Equipment Sales [Member]
Total net sales	1,674,737
Equipment Rentals [Member]
Total net sales	507,920
Engineering Parts [Member]
Total net sales	2,864,996
Services [Member]
Total net sales	456,704
Software Sales [Member]
Total net sales	254,151
United States [Member]
Total net sales	2,693,913
United States [Member] \| Equipment Sales [Member]
Total net sales	50,559
United States [Member] \| Equipment Rentals [Member]
Total net sales	53,483
United States [Member] \| Engineering Parts [Member]
Total net sales	2,190,192
United States [Member] \| Services [Member]
Total net sales	399,679
Europe [Member]
Total net sales	1,133,844
Europe [Member] \| Equipment Sales [Member]
Total net sales	421,386
Europe [Member] \| Equipment Rentals [Member]
Total net sales	160,389
Europe [Member] \| Engineering Parts [Member]
Total net sales	321,942
Europe [Member] \| Services [Member]
Total net sales	140,552
Europe [Member] \| Software Sales [Member]
Total net sales	89,575
Australia/Asia [Member]
Total net sales	1,817,201
Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales	1,192,319
Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales	257,918
Australia/Asia [Member] \| Services [Member]
Total net sales	223,375
Australia/Asia [Member] \| Software Sales [Member]
Total net sales	143,589
Middle East & Africa [Member]
Total net sales	113,550
Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales	10,473
Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales	36,130
Middle East & Africa [Member] \| Services [Member]
Total net sales	45,960
Middle East & Africa [Member] \| Software Sales [Member]
Total net sales	20,987
Marine Technology Business [Member]
Total net sales	2,829,536
Marine Technology Business [Member] \| Equipment Sales [Member]
Total net sales	1,574,051
Marine Technology Business [Member] \| Equipment Rentals [Member]
Total net sales	507,920
Marine Technology Business [Member] \| Engineering Parts [Member]
Total net sales	352,862
Marine Technology Business [Member] \| Services [Member]
Total net sales	140,552
Marine Technology Business [Member] \| Software Sales [Member]
Total net sales	254,151
Marine Technology Business [Member] \| United States [Member]
Total net sales	184,560
Marine Technology Business [Member] \| United States [Member] \| Equipment Sales [Member]
Total net sales	47,550
Marine Technology Business [Member] \| United States [Member] \| Equipment Rentals [Member]
Total net sales	53,483
Marine Technology Business [Member] \| United States [Member] \| Engineering Parts [Member]
Total net sales
Marine Technology Business [Member] \| United States [Member] \| Services [Member]
Total net sales	83,527
Marine Technology Business [Member] \| Europe [Member]
Total net sales	714,225
Marine Technology Business [Member] \| Europe [Member] \| Equipment Sales [Member]
Total net sales	323,709
Marine Technology Business [Member] \| Europe [Member] \| Equipment Rentals [Member]
Total net sales	160,389
Marine Technology Business [Member] \| Europe [Member] \| Engineering Parts [Member]
Total net sales
Marine Technology Business [Member] \| Europe [Member] \| Services [Member]
Total net sales	140,552
Marine Technology Business [Member] \| Europe [Member] \| Software Sales [Member]
Total net sales	89,575
Marine Technology Business [Member] \| Australia/Asia [Member]
Total net sales	1,817,201
Marine Technology Business [Member] \| Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales	1,192,319
Marine Technology Business [Member] \| Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales	257,918
Marine Technology Business [Member] \| Australia/Asia [Member] \| Services [Member]
Total net sales	223,375
Marine Technology Business [Member] \| Australia/Asia [Member] \| Software Sales [Member]
Total net sales	143,589
Marine Technology Business [Member] \| Middle East & Africa [Member]
Total net sales	113,550
Marine Technology Business [Member] \| Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales	10,473
Marine Technology Business [Member] \| Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales	36,130
Marine Technology Business [Member] \| Middle East & Africa [Member] \| Services [Member]
Total net sales	45,960
Marine Technology Business [Member] \| Middle East & Africa [Member] \| Software Sales [Member]
Total net sales	20,987
Marine Engineering Business [Member]
Total net sales	2,928,972
Marine Engineering Business [Member] \| Equipment Sales [Member]
Total net sales	100,686
Marine Engineering Business [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business [Member] \| Engineering Parts [Member]
Total net sales	2,512,134
Marine Engineering Business [Member] \| Services [Member]
Total net sales	316,152
Marine Engineering Business [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business [Member] \| United States [Member]
Total net sales	2,509,353
Marine Engineering Business [Member] \| United States [Member] \| Equipment Sales [Member]
Total net sales	3,009
Marine Engineering Business [Member] \| United States [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business [Member] \| United States [Member] \| Engineering Parts [Member]
Total net sales	2,190,192
Marine Engineering Business [Member] \| United States [Member] \| Services [Member]
Total net sales	316,152
Marine Engineering Business [Member] \| Europe [Member]
Total net sales	419,619
Marine Engineering Business [Member] \| Europe [Member] \| Equipment Sales [Member]
Total net sales	97,677
Marine Engineering Business [Member] \| Europe [Member] \| Equipment Rentals [Member]
Total net sales
Marine Engineering Business [Member] \| Europe [Member] \| Engineering Parts [Member]
Total net sales	321,942
Marine Engineering Business [Member] \| Europe [Member] \| Services [Member]
Total net sales
Marine Engineering Business [Member] \| Europe [Member] \| Software Sales [Member]
Total net sales
Marine Engineering Business [Member] \| Australia/Asia [Member]
Total net sales
Marine Engineering Business [Member] \| Middle East & Africa [Member]
Total net sales