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)