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v3.20.1

Buildings, Equipment, Furnishings and Leasehold Improvements - Equipment, furnishings and leasehold improvements (Details) - USD ($) | 12 Months Ended
--- | ---
Feb. 29, 2020 | Feb. 28, 2019
Equipment, furnishings and leasehold improvements | $ 7,929,538 | $ 7,207,297
Less: accumulated decpreciation | 5,062,899 | 4,672,818
Equipment, furnishings and leasehold improvements, net | 2,866,639 | 2,534,479
Depreciation Expense | 390,082 | 382,777
Buildings |  |
Equipment, furnishings and leasehold improvements | 2,250,000 | 2,250,000
Laboratory Equipment |  |
Equipment, furnishings and leasehold improvements | 1,418,903 | 1,140,821
Machinery and Equipment |  |
Equipment, furnishings and leasehold improvements | 1,400,419 | 1,211,778
Leasehold improvements |  |
Equipment, furnishings and leasehold improvements | 632,021 | 473,560
Tradeshow and Demonstration Equipment |  |
Equipment, furnishings and leasehold improvements | 1,139,693 | 1,086,916
Furniture and Fixtures |  |
Equipment, furnishings and leasehold improvements | $ 1,088,502 | $ 1,044,222

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