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12. INCOME TAXES (Details 2) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred income tax assets: |  |
Inventories | $ 241,874 | $ 145,884
Accounts receivable | 445,392 | 253,559
Accrued expenses | 116,254 | 80,068
Net operating loss and tax credit carry forwards | 15,243,998 | 13,276,081
Plant and equipment | 39,521 | 6,014
Stock compensation | 448,375 | 123,841
Lease accounting | 248 | 26,515
Other - interest expense | 24,009 | 12,385
Total deferred income tax assets | 16,559,671 | 13,924,347
Valuation allowance | (16,559,671) | (13,924,347)
Net deferred tax assets | $ 0 | $ 0

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