ACCRUED EXPENSES AND OTHER LIABILITIES - Schedule of Accrued Liabilities (Details) - USD ($) |
Mar. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Payables and Accruals [Abstract] | |||
| Accrued interest expense | $ 12,329 | $ 0 | |
| Accrued Northern Comstock LLC | 0 | 180,833 | |
| Accrued payroll costs | 817,062 | 153,615 | |
| Accrued directors fees | 0 | 60,000 | |
| Accrued vendor liabilities | 77,062 | 136,499 | |
| Other accrued expenses | 32,990 | 4,000 | |
| Total accrued expenses | $ 986,400 | $ 939,443 | $ 534,947 |