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INCOME TAXES - Deferred tax asset and liability components (Details) - USD ($) | Feb. 28, 2023 | Feb. 28, 2022
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Deferred tax asset |  |
Allowance for inventory | $ 76,000 | $ 69,000
Allowance for accounts receivable | 3,000 | 12,000
Capitalized R&D expenses – IRC Section 174 | 441,000 |
Accrued expenses and other | 147,000 | 160,000
Deferred tax asset – Long Term | 667,000 | 241,000
Deferred tax liability |  |
Building and leasehold depreciation | (83,000) | (169,000)
Deferred tax liability – Long Term | $ (83,000) | $ (169,000)

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