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Inventories - Schedule of Inventory, Current (Details) - USD ($)	May 31, 2021	Feb. 28, 2021
Inventory Disclosure [Abstract]
Raw materials and subassemblies	$ 1,176,733	$ 1,081,591
Finished goods	613,653	786,785
Work in process	1,137,114	1,027,010
Total	2,927,500	2,895,386
Less: Allowance	(315,280)	(284,280)
Net inventories	$ 2,612,220	$ 2,611,106

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