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Schedule of components of deferred tax assets (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
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Income Tax Disclosure [Abstract] |  |
Deferred compensation cost | $ 389,981 | $ 239,036
Depreciation and amortization | (116,911) | (135,092)
R&D credit | 142,538 |
NOL | 1,507,982 |
Allowance for bad debts and other | 17,664 | 21,330
Deferred income tax assets, net | $ 1,941,254 | $ 125,274

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