v3.22.2

INCOME TAXES - Components of deferred tax assets and liabilities (Details) - USD ($) | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Deferred tax components |  |  |
Unrealized (gain) loss on marketable securities |  | $ (46,552) | $ (488,419)
Depreciation |  | 2,458 | 3,002
Net operating loss carryforwards |  |  | 180,460
R&D and foreign credits |  |  | 46,957
Other |  | (906) |
Net deferred tax asset (liability) | $ (39,000) | $ (45,000) | $ (258,000)

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research & developments and foreign tax credit carryforwards. + References No definition available. + Details
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