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Loans and Allowance for Credit Losses - Schedule of balance in the ACL and the recorded investment in loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2020
Beginning balance of allowance for loan losses | $ 35,084 | $ 20,710 | $ 25,139 | $ 19,903 | $ 19,903
Impact of CECL adoption |  |  | 9,333 |  |
Provision charged to expense | 612 | 388 | 1,385 | 1,284 |
Losses charged off | (246) | (310) | (416) | (416) |
Recoveries | 21 | 26 | 30 | 43 |
Ending balance of allowance for loan losses | 35,471 | 20,814 | 35,471 | 20,814 | 25,139
Ending Balance: individually evaluated for impairment | 232 |  | 232 |  |
Ending Balance: collectively evaluated for impairment | 35,239 | 20,814 | 35,239 | 20,814 | 25,139
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Ending Balance: individually evaluated for impairment | 904 |  | 904 |  | 0
Ending Balance: collectively evaluated for impairment | 2,142,867 |  | 2,142,867 |  | 2,149,664
Ending Balance: loans acquired with deteriorated credit quality |  |  | 15,412 |  | 21,799
Prior to adoption of CECL |  |  |  |  |
Beginning balance of allowance for loan losses |  |  | 25,139 |  |
Ending balance of allowance for loan losses |  |  |  |  | 25,139
Consumer Loan |  |  |  |  |
Beginning balance of allowance for loan losses | 2,305 | 1,074 | 1,182 | 1,046 | 1,046
Impact of CECL adoption |  |  | 1,065 |  |
Provision charged to expense | (882) | (4) | (823) | 92 |
Losses charged off | (67) | (26) | (72) | (97) |
Recoveries | 6 | 6 | 10 | 9 |
Ending balance of allowance for loan losses | 1,362 | 1,050 | 1,362 | 1,050 | 1,182
Ending Balance: collectively evaluated for impairment | 1,362 | 1,050 | 1,362 | 1,050 | 1,182
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Ending Balance: individually evaluated for impairment |  |  |  |  | 0
Ending Balance: collectively evaluated for impairment | 79,590 |  | 79,590 |  | 80,767
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Consumer Loan | Prior to adoption of CECL |  |  |  |  |
Beginning balance of allowance for loan losses |  |  | 1,182 |  |
Ending balance of allowance for loan losses |  |  |  |  | 1,182
Commercial Loan |  |  |  |  |
Beginning balance of allowance for loan losses | 6,208 | 4,736 | 4,940 | 4,387 | 4,387
Impact of CECL adoption |  |  | 1,012 |  |
Provision charged to expense | (49) | (57) | 348 | 327 |
Losses charged off | (89) | (112) | (234) | (147) |
Recoveries | 15 | 1 | 19 | 1 |
Ending balance of allowance for loan losses | 6,085 | 4,568 | 6,085 | 4,568 | 4,940
Ending Balance: collectively evaluated for impairment | 6,085 | 4,568 | 6,085 | 4,568 | 4,940
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Ending Balance: individually evaluated for impairment |  |  |  |  | 0
Ending Balance: collectively evaluated for impairment | 424,169 |  | 424,169 |  | 463,902
Ending Balance: loans acquired with deteriorated credit quality |  |  | 3,176 |  | 4,546
Commercial Loan | Prior to adoption of CECL |  |  |  |  |
Beginning balance of allowance for loan losses |  |  | 4,940 |  |
Ending balance of allowance for loan losses |  |  |  |  | 4,940
Construction Real Estate |  |  |  |  |
Beginning balance of allowance for loan losses | 1,892 | 1,539 | 2,010 | 1,365 | 1,365
Impact of CECL adoption |  |  | (121) |  |
Provision charged to expense | 495 | 118 | 498 | 292 |
Losses charged off |  | 0 |  |  |
Recoveries |  | 0 |  |  |
Ending balance of allowance for loan losses | 2,387 | 1,657 | 2,387 | 1,657 | 2,010
Ending Balance: collectively evaluated for impairment | 2,387 | 1,657 | 2,387 | 1,657 | 2,010
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Ending Balance: individually evaluated for impairment |  |  |  |  | 0
Ending Balance: collectively evaluated for impairment | 112,037 |  | 112,037 |  | 106,194
Ending Balance: loans acquired with deteriorated credit quality |  |  | 957 |  | 1,278
Construction Real Estate | Prior to adoption of CECL |  |  |  |  |
Beginning balance of allowance for loan losses |  |  | 2,010 |  |
Ending balance of allowance for loan losses |  |  |  |  | 2,010
Residential real estate loans |  |  |  |  |
Beginning balance of allowance for loan losses | 8,629 | 3,572 | 4,875 | 3,706 | 3,706
Impact of CECL adoption |  |  | 3,521 |  |
Provision charged to expense | 1,859 | 294 | 2,112 | 160 |
Losses charged off | (90) | (172) | (110) | (172) |
Recoveries |  | 18 |  | 18 |
Ending balance of allowance for loan losses | 10,398 | 3,712 | 10,398 | 3,712 | 4,875
Ending Balance: individually evaluated for impairment | 232 |  | 232 |  |
Ending Balance: collectively evaluated for impairment | 10,166 | 3,712 | 10,166 | 3,712 | 4,875
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Ending Balance: individually evaluated for impairment | 904 |  | 904 |  | 0
Ending Balance: collectively evaluated for impairment | 635,760 |  | 635,760 |  | 626,085
Ending Balance: loans acquired with deteriorated credit quality |  |  | 26 |  | 1,272
Residential real estate loans | Prior to adoption of CECL |  |  |  |  |
Beginning balance of allowance for loan losses |  |  | 4,875 |  |
Ending balance of allowance for loan losses |  |  |  |  | 4,875
Commercial Real Estate |  |  |  |  |
Beginning balance of allowance for loan losses | 16,050 | 9,789 | 12,132 | 9,399 | 9,399
Impact of CECL adoption |  |  | 3,856 |  |
Provision charged to expense | (811) | 37 | (750) | 413 |
Losses charged off |  | 0 |  |  |
Recoveries |  | 1 | 1 | 15 |
Ending balance of allowance for loan losses | 15,239 | 9,827 | 15,239 | 9,827 | 12,132
Ending Balance: collectively evaluated for impairment | 15,239 | $ 9,827 | 15,239 | $ 9,827 | 12,132
Ending Balance: loans acquired with deteriorated credit quality |  |  |  |  | 0
Ending Balance: individually evaluated for impairment |  |  |  |  | 0
Ending Balance: collectively evaluated for impairment | $ 891,311 |  | 891,311 |  | 872,716
Ending Balance: loans acquired with deteriorated credit quality |  |  | 11,253 |  | 14,703
Commercial Real Estate | Prior to adoption of CECL |  |  |  |  |
Beginning balance of allowance for loan losses |  |  | $ 12,132 |  |
Ending balance of allowance for loan losses |  |  |  |  | $ 12,132

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