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v3.21.1

Buildings, Equipment, Furnishings and Leasehold Improvements - Equipment, furnishings and leasehold improvements (Details) - USD ($) | 12 Months Ended
--- | ---
Feb. 28, 2021 | Feb. 29, 2020
Equipment, furnishings and leasehold improvements | $ 8,134,753 | $ 7,929,538
Less: accumulated decpreciation | (5,484,428) | (5,062,899)
Equipment, furnishings and leasehold improvements, net | 2,650,325 | 2,866,639
Depreciation Expense | 427,650 | 390,082
Buildings |  |
Equipment, furnishings and leasehold improvements | 2,250,000 | 2,250,000
Laboratory Equipment |  |
Equipment, furnishings and leasehold improvements | 1,399,826 | 1,418,903
Machinery and Equipment |  |
Equipment, furnishings and leasehold improvements | 1,548,415 | 1,400,419
Leasehold improvements |  |
Equipment, furnishings and leasehold improvements | 642,671 | 632,021
Tradeshow and Demonstration Equipment |  |
Equipment, furnishings and leasehold improvements | 1,137,346 | 1,139,693
Furniture and Fixtures |  |
Equipment, furnishings and leasehold improvements | $ 1,156,495 | $ 1,088,502

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