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Inventories - Schedule of Inventory, Current (Details) - USD ($) | Aug. 31, 2021 | Feb. 28, 2021
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Inventory Disclosure [Abstract] |  |
Raw materials and subassemblies | $ 1,299,693 | $ 1,081,591
Finished goods | 580,383 | 786,785
Work in process | 1,303,140 | 1,027,010
Total | 3,183,216 | 2,895,386
Less: Allowance | (259,361) | (284,280)
Net inventories | $ 2,923,855 | $ 2,611,106

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