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Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | $ 16,903 | $ 18,113 | $ 18,113 |
Additions: |  |  |  |
(Release of) provision for loan losses | (2,500) | 0 |  |
Deductions: |  |  |  |
Loans charged off | 166 | 107 |  |
Less recoveries on loans | (42) | (355) |  |
Net loan charge-offs (recoveries) | 124 | (248) |  |
Balance at end of period | $ 14,279 | 18,361 | 16,903 | $ 18,113
Amount of PPP loans funded during the period |  |  | 47,500 | 88,400
Percentage credit guarantee from the SBA for the PPP loans | 100.00% |  |  |
Allowance for PPP loans | $ 0 |  |  |
SBA PPP loans, net | $ 2,300 |  |  |
Paycheck protection program interest rate | 1.00% |  |  |
Commercial, Financial, & Agricultural |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | $ 2,717 | 5,121 | 5,121 |
Additions: |  |  |  |
(Release of) provision for loan losses | 128 | (567) |  |
Deductions: |  |  |  |
Loans charged off | 35 | 27 |  |
Less recoveries on loans | (20) | (149) |  |
Net loan charge-offs (recoveries) | 15 | (122) |  |
Balance at end of period | 2,830 | 4,676 | 2,717 | 5,121
SBA PPP loans, net | 2,300 |  |  |
Residential real estate |  |  |  |
Deductions: |  |  |  |
SBA PPP loans, net |  |  | 8,400 |
Residential real estate | Construction |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 137 | 213 | 213 |
Additions: |  |  |  |
(Release of) provision for loan losses | (77) | 83 |  |
Deductions: |  |  |  |
Loans charged off | 0 | 0 |  |
Less recoveries on loans | 0 | (13) |  |
Net loan charge-offs (recoveries) | 0 | (13) |  |
Balance at end of period | 60 | 309 | 137 | 213
Residential real estate | Mortgages |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 2,482 | 2,679 | 2,679 |
Additions: |  |  |  |
(Release of) provision for loan losses | 93 | (253) |  |
Deductions: |  |  |  |
Loans charged off | 0 | 0 |  |
Less recoveries on loans | (3) | (168) |  |
Net loan charge-offs (recoveries) | (3) | (168) |  |
Balance at end of period | 2,578 | 2,594 | 2,482 | 2,679
Commercial real estate | Construction |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 588 | 475 | 475 |
Additions: |  |  |  |
(Release of) provision for loan losses | 76 | 57 |  |
Deductions: |  |  |  |
Loans charged off | 0 | 0 |  |
Less recoveries on loans | 0 | 0 |  |
Net loan charge-offs (recoveries) | 0 | 0 |  |
Balance at end of period | 664 | 532 | 588 | 475
Commercial real estate | Mortgages |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 10,662 | 9,354 | 9,354 |
Additions: |  |  |  |
(Release of) provision for loan losses | (2,897) | 573 |  |
Deductions: |  |  |  |
Loans charged off | 75 | 23 |  |
Less recoveries on loans | (2) | 0 |  |
Net loan charge-offs (recoveries) | 73 | 23 |  |
Balance at end of period | 7,692 | 9,904 | 10,662 | 9,354
Installment and Other Consumer |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 256 | 264 | 264 |
Additions: |  |  |  |
(Release of) provision for loan losses | 56 | 13 |  |
Deductions: |  |  |  |
Loans charged off | 56 | 57 |  |
Less recoveries on loans | (17) | (25) |  |
Net loan charge-offs (recoveries) | 39 | 32 |  |
Balance at end of period | 273 | 245 | 256 | 264
Un- allocated |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 61 | 7 | 7 |
Additions: |  |  |  |
(Release of) provision for loan losses | 121 | 94 |  |
Deductions: |  |  |  |
Loans charged off | 0 | 0 |  |
Less recoveries on loans | 0 | 0 |  |
Net loan charge-offs (recoveries) | 0 | 0 |  |
Balance at end of period | $ 182 | $ 101 | $ 61 | $ 7

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