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Allowance for Loan Losses - Allowance for loan losses activity (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | $ 20,032 | $ 17,017
Charge-offs | (1) | (1)
Provision |  | 2,365
Ending Balance | 20,031 | 19,381
Collectively evaluated for impairment | 20,031 | 19,381
Ending Balance | 1,628,480 | 1,606,945
Individually evaluated for impairment | 542 | 589
Collectively evaluated for impairment | 1,627,938 | 1,606,356
Unallocated |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | 632 | 350
Provision | (205) | 235
Ending Balance | 427 | 585
Collectively evaluated for impairment | 427 | 585
Ending Balance |  |
Collectively evaluated for impairment |  |
Real Estate Loans |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance |  | 10,602
Provision |  | 1,643
Ending Balance |  | 12,245
Collectively evaluated for impairment |  | 12,245
Ending Balance |  | 895,547
Individually evaluated for impairment |  | 141
Collectively evaluated for impairment |  | 895,406
Real Estate Loans | Residential Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | 2,769 | 2,430
Provision | (12) | (20)
Ending Balance | 2,757 | 2,410
Collectively evaluated for impairment | 2,757 | 2,410
Ending Balance | 356,331 | 281,964
Individually evaluated for impairment | 542 | 448
Collectively evaluated for impairment | 355,789 | 281,516
Real Estate Loans | Commercial Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | 13,091 |
Charge-offs | (1) |
Provision | (694) |
Ending Balance | 12,396 |
Collectively evaluated for impairment | 12,396 |
Ending Balance | 992,126 |
Collectively evaluated for impairment | 992,126 |
Real Estate Loans | Construction and land development |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | 2,824 | 2,617
Provision | 922 | 780
Ending Balance | 3,746 | 3,397
Collectively evaluated for impairment | 3,746 | 3,397
Ending Balance | 219,160 | 250,208
Collectively evaluated for impairment | 219,160 | 250,208
Commercial - Non-Real Estate | Commercial |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | 711 | 1,007
Charge-offs |  | (1)
Provision | (11) | (271)
Ending Balance | 700 | 735
Collectively evaluated for impairment | 700 | 735
Ending Balance | 60,350 | 178,433
Collectively evaluated for impairment | 60,350 | 178,433
Consumer - Non-Real Estate | Consumer |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning Balance | 5 | 11
Provision |  | (2)
Ending Balance | 5 | 9
Collectively evaluated for impairment | 5 | 9
Ending Balance | 513 | 793
Collectively evaluated for impairment | $ 513 | $ 793

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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 + Details
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