v3.22.2
INCOME TAXES - Reconciliation of income tax provision (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Rate reconciliation:        
Tax expense at U.S.statutory rate     $ 1,017,417 $ 716,966
Change in valuation allowance       (446,000)
Provision-to-return reconciliation     (14,743) 21,657
Other     (1,976) (4,222)
Provision for income taxes $ 159,000 $ 662,691 $ 1,054,698 $ 288,401