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, 2021	Jan. 31, 2020
Total net sales	$ 5,050,459	$ 6,680,979
Equipment Sales [Member]
Total net sales	3,014,444	2,722,919
Equipment Rentals [Member]
Total net sales	334,363	323,645
Software Sales [Member]
Total net sales	225,222	229,775
Engineering Parts [Member]
Total net sales	1,070,303	2,553,229
Services [Member]
Total net sales	406,127	851,411
Americas [Member]
Total net sales	1,065,719	2,677,237
Americas [Member] \| Equipment Sales [Member]
Total net sales	252,625	334,388
Americas [Member] \| Equipment Rentals [Member]
Total net sales	48,925	45,069
Americas [Member] \| Software Sales [Member]
Total net sales		7,250
Americas [Member] \| Engineering Parts [Member]
Total net sales	505,521	1,646,374
Americas [Member] \| Services [Member]
Total net sales	258,648	644,156
Europe [Member]
Total net sales	1,910,851	1,531,279
Europe [Member] \| Equipment Sales [Member]
Total net sales	1,115,061	338,147
Europe [Member] \| Equipment Rentals [Member]
Total net sales	153,109	52,644
Europe [Member] \| Software Sales [Member]
Total net sales	38,086	102,526
Europe [Member] \| Engineering Parts [Member]
Total net sales	564,782	906,855
Europe [Member] \| Services [Member]
Total net sales	39,813	131,107
Australia/Asia [Member]
Total net sales	2,008,210	2,421,360
Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales	1,646,758	2,028,310
Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales	132,329	225,932
Australia/Asia [Member] \| Software Sales [Member]
Total net sales	187,136	119,999
Australia/Asia [Member] \| Services [Member]
Total net sales	41,987	47,119
Middle East & Africa [Member]
Total net sales	65,679	51,103
Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales		22,074
Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales
Middle East & Africa [Member] \| Software Sales [Member]
Total net sales
Middle East & Africa [Member] \| Services [Member]
Total net sales	65,679	29,029
Marine Technology Business (Products) [Member]
Total net sales	3,748,279	3,632,812
Marine Technology Business (Products) [Member] \| Equipment Sales [Member]
Total net sales	2,793,487	2,722,919
Marine Technology Business (Products) [Member] \| Equipment Rentals [Member]
Total net sales	334,363	323,645
Marine Technology Business (Products) [Member] \| Software Sales [Member]
Total net sales	225,222	229,775
Marine Technology Business (Products) [Member] \| Engineering Parts [Member]
Total net sales	213,956
Marine Technology Business (Products) [Member] \| Services [Member]
Total net sales	181,251	356,473
Marine Technology Business (Products) [Member] \| Americas [Member]
Total net sales	549,278	541,332
Marine Technology Business (Products) [Member] \| Americas [Member] \| Equipment Sales [Member]
Total net sales	252,625	334,388
Marine Technology Business (Products) [Member] \| Americas [Member] \| Equipment Rentals [Member]
Total net sales	48,925	45,069
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	213,956
Marine Technology Business (Products) [Member] \| Americas [Member] \| Services [Member]
Total net sales	33,772	154,625
Marine Technology Business (Products) [Member] \| Europe [Member]
Total net sales	1,125,112	619,017
Marine Technology Business (Products) [Member] \| Europe [Member] \| Equipment Sales [Member]
Total net sales	894,104	338,147
Marine Technology Business (Products) [Member] \| Europe [Member] \| Equipment Rentals [Member]
Total net sales	153,109	52,644
Marine Technology Business (Products) [Member] \| Europe [Member] \| Software Sales [Member]
Total net sales	38,086	102,526
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	39,813	125,700
Marine Technology Business (Products) [Member] \| Australia/Asia [Member]
Total net sales	2,008,210	2,421,360
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Equipment Sales [Member]
Total net sales	1,646,758	2,028,310
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Equipment Rentals [Member]
Total net sales	132,329	225,932
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Software Sales [Member]
Total net sales	187,136	119,999
Marine Technology Business (Products) [Member] \| Australia/Asia [Member] \| Services [Member]
Total net sales	41,987	47,119
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member]
Total net sales	65,679	51,103
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Equipment Sales [Member]
Total net sales		22,074
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Equipment Rentals [Member]
Total net sales
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Software Sales [Member]
Total net sales
Marine Technology Business (Products) [Member] \| Middle East & Africa [Member] \| Services [Member]
Total net sales	65,679	29,029
Marine Engineering Business (Services) [Member]
Total net sales	1,302,180	3,048,167
Marine Engineering Business (Services) [Member] \| Equipment Sales [Member]
Total net sales	220,957
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	856,347	2,553,229
Marine Engineering Business (Services) [Member] \| Services [Member]
Total net sales	224,876	494,938
Marine Engineering Business (Services) [Member] \| Americas [Member]
Total net sales	516,441	2,135,905
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Equipment Sales [Member]
Total net sales
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	291,565	1,646,374
Marine Engineering Business (Services) [Member] \| Americas [Member] \| Services [Member]
Total net sales	224,876	489,531
Marine Engineering Business (Services) [Member] \| Europe [Member]
Total net sales	785,739	912,262
Marine Engineering Business (Services) [Member] \| Europe [Member] \| Equipment Sales [Member]
Total net sales	220,957
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	564,782	906,855
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