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Loans (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | $ 14,487 |  |  |  | $ 13,592 | $ 14,487 | $ 13,592 | $ 12,315
Provision for loan losses | $ 3,000 | $ 2,600 | $ 2,400 | 1,100 | $ 600 | $ 550 | $ 750 | 550 | 9,100 | 2,450 | 3,000
Loans charged off |  |  |  |  |  |  |  |  | (2,053) | (2,347) | (2,856)
Recoveries |  |  |  |  |  |  |  |  | 610 | 792 | 1,133
Ending balance | 22,144 |  |  |  | 14,487 |  |  |  | 22,144 | 14,487 | 13,592
Commercial real estate |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 5,843 |  |  |  | 5,036 | 5,843 | 5,036 | 4,260
Provision for loan losses |  |  |  |  |  |  |  |  | 4,745 | 848 | 650
Loans charged off |  |  |  |  |  |  |  |  | (122) | (45) | 0
Recoveries |  |  |  |  |  |  |  |  | 31 | 4 | 126
Ending balance | 10,497 |  |  |  | 5,843 |  |  |  | 10,497 | 5,843 | 5,036
Commercial |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 2,323 |  |  |  | 2,093 | 2,323 | 2,093 | 2,011
Provision for loan losses |  |  |  |  |  |  |  |  | 2,998 | 417 | 112
Loans charged off |  |  |  |  |  |  |  |  | (412) | (200) | (220)
Recoveries |  |  |  |  |  |  |  |  | 11 | 13 | 190
Ending balance | 4,920 |  |  |  | 2,323 |  |  |  | 4,920 | 2,323 | 2,093
Residential real estate |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 2,875 |  |  |  | 2,837 | 2,875 | 2,837 | 2,521
Provision for loan losses |  |  |  |  |  |  |  |  | 748 | 380 | 486
Loans charged off |  |  |  |  |  |  |  |  | (172) | (400) | (318)
Recoveries |  |  |  |  |  |  |  |  | 85 | 58 | 148
Ending balance | 3,536 |  |  |  | 2,875 |  |  |  | 3,536 | 2,875 | 2,837
Consumer |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 2,710 |  |  |  | 2,963 | 2,710 | 2,963 | 2,848
Provision for loan losses |  |  |  |  |  |  |  |  | 677 | 732 | 1,764
Loans charged off |  |  |  |  |  |  |  |  | (1,347) | (1,702) | (2,318)
Recoveries |  |  |  |  |  |  |  |  | 483 | 717 | 669
Ending balance | 2,523 |  |  |  | 2,710 |  |  |  | 2,523 | 2,710 | 2,963
Unallocated |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | $ 736 |  |  |  | $ 663 | 736 | 663 | 675
Provision for loan losses |  |  |  |  |  |  |  |  | (68) | 73 | (12)
Loans charged off |  |  |  |  |  |  |  |  | 0 | 0 | 0
Recoveries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Ending balance | $ 668 |  |  |  | $ 736 |  |  |  | $ 668 | $ 736 | $ 663

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