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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Major Categories of Loans (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 204,252 | $ 210,392 |
Less: Allowance for credit losses | (2,380) | (2,470) | $ (1,476)
Loans, net | $ 201,872 | $ 207,922 |
Loans and lease receivable allowances, percentage | 100.00% | 100.00% |
Increase (decrease) in loans and leases receivable | $ (6,100) |  |
Percentage of increase (decrease) in loans and leases receivable | (2.91%) |  |
Real Estate Loan |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 135,469 | $ 136,705 |
Less: Allowance for credit losses |  |  | (781)
Commercial and Industrial |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | 15,834 | 17,447 |
Less: Allowance for credit losses |  |  | (115)
Consumer Loans |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | 52,949 | 56,240 |
Less: Allowance for credit losses |  |  | (580)
Construction And Land Development [Member] | Real Estate Loan |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 3,496 | $ 4,087 |
Less: Allowance for credit losses |  |  | (10)
Loans and lease receivable allowances, percentage | 2.00% | 2.00% |
Increase (decrease) in loans and leases receivable | $ 600 |  |
Percentage of increase (decrease) in loans and leases receivable | 14.45% |  |
Farmland | Real Estate Loan |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 341 | $ 342 |
Less: Allowance for credit losses |  |  | (2)
Single-family | Real Estate Loan |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 78,214 | $ 78,119 |
Less: Allowance for credit losses |  |  | (512)
Loans and lease receivable allowances, percentage | 38.00% | 37.00% |
Increase (decrease) in loans and leases receivable | $ 100 |  |
Percentage of increase (decrease) in loans and leases receivable | 0.12% |  |
Multi-family | Real Estate Loan |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 5,402 | $ 5,428 |
Less: Allowance for credit losses |  |  | (39)
Loans and lease receivable allowances, percentage | 3.00% | 3.00% |
Commercial | Real Estate Loan |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 48,016 | $ 48,729 |
Less: Allowance for credit losses |  |  | (218)
Loans and lease receivable allowances, percentage | 24.00% | 23.00% |
Increase (decrease) in loans and leases receivable | $ (700) |  |
Percentage of increase (decrease) in loans and leases receivable | (1.46%) |  |
Commercial | Consumer Loans |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 52,949 |  |
Commercial and industrial | Commercial and Industrial |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 9,027 | $ 10,003 |
Less: Allowance for credit losses |  |  | (67)
Loans and lease receivable allowances, percentage | 4.00% | 5.00% |
Increase (decrease) in loans and leases receivable | $ (1,000) |  |
Percentage of increase (decrease) in loans and leases receivable | (9.76%) |  |
SBA Guaranty | Commercial and Industrial |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 6,322 | $ 6,397 |
Less: Allowance for credit losses |  |  | (48)
Loans and lease receivable allowances, percentage | 3.00% | 3.00% |
Increase (decrease) in loans and leases receivable | $ (100) |  |
Percentage of increase (decrease) in loans and leases receivable | (1.18%) |  |
Comm SBA PPP | Commercial and Industrial |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 485 | $ 1,047 |
Increase (decrease) in loans and leases receivable | $ (500) |  |
Percentage of increase (decrease) in loans and leases receivable | (53.71%) |  |
Consumer and Indirect | Consumer Loans |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 1,998 | $ 2,090 |
Less: Allowance for credit losses |  |  | (11)
Loans and lease receivable allowances, percentage | 1.00% | 1.00% |
Increase (decrease) in loans and leases receivable | $ 100 |  |
Percentage of increase (decrease) in loans and leases receivable | 4.38% |  |
Automobile | Consumer Loans |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Loans, net of deferred fees and costs | $ 50,951 | $ 54,150 |
Less: Allowance for credit losses |  |  | $ (569)
Loans and lease receivable allowances, percentage | 25.00% | 26.00% |
Increase (decrease) in loans and leases receivable | $ (3,200) |  |
Percentage of increase (decrease) in loans and leases receivable | (5.91%) |  |

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