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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2022
Fair Value Measurements [Abstract] |
Fair Value Assets and Liabilities Measured on Nonrecurring Basis Valuation Techniques | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Dollars in thousands) |  | Fair Value |  | Valuation Technique |  | Unobservable Input |  | Range
March 31, 2022 |  | ​ |  |  |  | ​ |  | ​ |
MSRs (1) | ​ | $ | 5,113 |  | Market Approach | ​ | Weighted average prepayment speed (PSA) (2) | ​ | 121
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
IRLCs - net asset | ​ | $ | 217 |  | Market Approach | ​ | Range of pull through rate | ​ | 78% - 100%
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average pull through rate | ​ | 92%
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Dollars in thousands) |  | Fair Value |  | Valuation Technique |  | Unobservable Input |  | Range
December 31, 2021 |  | ​ |  |  |  | ​ |  | ​ |
MSRs (1) | ​ | $ | 4,087 |  | Market Approach | ​ | Weighted average prepayment speed (PSA) (2) | ​ | 156
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
IRLCs - net asset | ​ | $ | 380 |  | Market Approach | ​ | Range of pull through rate | ​ | 77% - 100%
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average pull through rate | ​ | 93%
| (1) | The weighted average was calculated with reference to the principal balance of the underlying mortgages.
| (2) | PSA = Public Securities Association Standard Prepayment Model
Schedule of Servicing Asset at Fair Value | ​
​ | ​ | ​ | ​
(Dollars in thousands) |  | March 31, 2022
Beginning balance |  | $ | 4,087
Servicing rights reulting from sales of loans | ​ | ​ | 472
Valuation adjustment | ​ | ​ | 554
Ending balance | ​ | $ | 5,113
Schedule of Derivative Asset at Fair Value | ​
​ | ​ | ​ | ​
(Dollars in thousands) |  | March 31, 2022
Beginning balance |  | $ | 380
Valuation adjustment | ​ | ​ | (163)
Ending balance | ​ | $ | 217
​
Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Significant | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Quoted | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Prices | ​ | Inputs | ​ | Inputs
(Dollars in thousands) |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
March 31, 2022 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Securities available for sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. Government agencies | ​ | $ | 21,255 | ​ | $ | — | ​ | $ | 21,255 | ​ | $ | —
Mortgage-backed | ​ |  | 83,442 | ​ |  | — | ​ |  | 83,442 | ​ |  | —
Other Debt Securities | ​ | ​ | 1,998 | ​ | ​ | — | ​ | ​ | 1,998 | ​ | ​ | —
​ | ​ |  | 106,695 | ​ |  | — | ​ |  | 106,695 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity securities | ​ | ​ | 1,305 | ​ | ​ | — | ​ | ​ | 1,305 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
TBA securities | ​ | ​ | 838 | ​ | ​ | — | ​ | ​ | 838 | ​ | ​ | —
LHFS | ​ | ​ | 12,906 | ​ | ​ | — | ​ | ​ | 12,906 | ​ | ​ | —
MSRs | ​ | ​ | 5,113 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 5,113
IRLCs | ​ | ​ | 217 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 217
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total assets at fair value | ​ | $ | 127,074 | ​ | $ | — | ​ | $ | 121,744 | ​ | $ | 5,330
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
TBA securities | ​ | $ | 6 | ​ | $ | — | ​ | $ | 6 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total liabilities at fair value | ​ | $ | 6 | ​ | $ | — | ​ | $ | 6 | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Significant | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Quoted | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Prices | ​ | Inputs | ​ | Inputs
(Dollars in thousands) |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
December 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Securities available for sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. Government agencies | ​ | $ | 22,305 | ​ | $ | — | ​ | $ | 22,305 | ​ | $ | —
Mortgage-backed | ​ |  | 92,637 | ​ |  | — | ​ |  | 92,637 | ​ |  | —
Other Debt Securities | ​ | ​ | 2,040 | ​ | ​ | — | ​ | ​ | 2,040 | ​ | ​ | —
​ | ​ |  | 116,982 | ​ |  | — | ​ |  | 116,982 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity securities | ​ | ​ | 1,372 | ​ | ​ | — | ​ | ​ | 1,372 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
TBA securities | ​ | ​ | 55 | ​ | ​ | — | ​ | ​ | 55 | ​ | ​ | —
LHFS | ​ | ​ | 37,749 | ​ | ​ | — | ​ | ​ | 37,749 | ​ | ​ | —
MSRs | ​ | ​ | 4,087 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4,087
IRLCs | ​ | ​ | 380 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 380
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total assets at fair value | ​ | $ | 160,625 | ​ | $ | — | ​ | $ | 156,158 | ​ | $ | 4,467
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
TBA securities | ​ | $ | 41 | ​ | $ | — | ​ | $ | 41 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total liabilities at fair value | ​ | $ | 41 | ​ | $ | — | ​ | $ | 41 | ​ | $ | —
Fair Value of Assets Measured on Nonrecurring Basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quantitative Information about Level 3 Fair Value Measurements
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted
(Dollars in thousands) |  | Fair Value |  | Valuation Technique |  | Unobservable Input |  | Range |  | Average (3)
March 31, 2022 |  | ​ |  |  |  | ​ |  | ​ |  | ​ |
Nonrecurring measurements: |  | ​ |  |  |  | ​ |  | ​ |  | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ | $ | 617 |  | Appraisal of collateral | (1) | Liquidation expense | (2) | 10% | ​ | (10%)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ | $ | 1,878 |  | Discounted cash flow analysis | (1) | Discount rate | ​ | 6% - 7.25% | ​ | (6%)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other real estate owned | ​ | $ | 561 |  | Appraisal of collateral | (1) | Appraisal adjustments | (2) | 0% - 20% | ​ | (7%)
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quantitative Information about Level 3 Fair Value Measurements
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted
(Dollars in thousands) |  | Fair Value |  | Valuation Technique |  | Unobservable Input |  | Range | ​ | Average (3)
December 31, 2021 |  | ​ |  |  |  | ​ |  | ​ | ​ | ​ |
Nonrecurring measurements: |  | ​ |  |  |  | ​ |  | ​ | ​ | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ | $ | 617 |  | Appraisal of collateral | (1) | Liquidation expense | (2) | 10% | ​ | (10%)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ | $ | 2,026 |  | Discounted cash flow analysis | (1) | Discount rate | ​ | 4% - 7.25% | ​ | (6%)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other real estate owned | ​ | $ | 532 |  | Appraisal of collateral | (1) | Appraisal adjustments | (2) | 20% - 40% | ​ | (35%)
​ (1)Fair value is generally determined through independent appraisals of the underlying collateral (impaired loans and OREO) or discounted cash flow analyses (impaired loans), which generally include various level III inputs which are not identifiable. (2)Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal. (3)Unobservable inputs were weighted by the relative fair value of the instruments. ​
Schedule of Estimated Fair Values of Financial Assets and Liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2022 |  | December 31, 2021
​ | ​ | ​ | ​ | ​ | Estimated | ​ | ​ | ​ | ​ | Estimated
​ | ​ | Carrying | ​ | Fair | ​ | Carrying | ​ | Fair
(Dollars in thousands) |  | Amount |  | Value |  | Amount |  | Value
Financial assets |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Level 1 inputs |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 570,976 | ​ | $ | 570,976 | ​ | $ | 583,613 | ​ | $ | 583,613
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Level 2 inputs | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Investment securities available for sale | ​ | $ | 106,695 | ​ | $ | 106,695 | ​ | $ | 116,982 | ​ | $ | 116,982
Investment securities held to maturity | ​ | ​ | 407,138 | ​ | ​ | 390,541 | ​ | ​ | 404,594 | ​ | ​ | 401,524
Equity securities | ​ | ​ | 1,305 | ​ | ​ | 1,305 | ​ | ​ | 1,372 | ​ | ​ | 1,372
Restricted securities | ​ |  | 9,894 | ​ |  | 9,894 | ​ |  | 4,159 | ​ |  | 4,159
LHFS | ​ | ​ | 12,906 | ​ | ​ | 12,906 | ​ | ​ | 37,749 | ​ | ​ | 37,749
TBA securities | ​ | ​ | 838 | ​ | ​ | 838 | ​ | ​ | 55 | ​ | ​ | 55
Cash surrender value on life insurance | ​ |  | 58,186 | ​ |  | 58,186 | ​ |  | 47,935 | ​ |  | 47,935
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Level 3 inputs | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Loans, net | ​ | $ | 2,166,396 | ​ | $ | 2,140,286 | ​ | $ | 2,105,231 | ​ | $ | 2,106,373
MSRs | ​ | ​ | 5,113 | ​ | ​ | 5,113 | ​ | ​ | 4,087 | ​ | ​ | 4,087
IRLCs | ​ | ​ | 217 | ​ | ​ | 217 | ​ | ​ | 380 | ​ | ​ | 380
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financial liabilities | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Level 2 inputs | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Deposits: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Noninterest-bearing demand | ​ | $ | 876,415 | ​ | $ | 876,415 | ​ | $ | 927,497 | ​ | $ | 927,497
Checking plus interest | ​ |  | 695,407 | ​ |  | 695,407 | ​ |  | 524,143 | ​ |  | 524,143
Money market | ​ |  | 726,858 | ​ |  | 726,858 | ​ |  | 889,099 | ​ |  | 889,099
Savings | ​ |  | 309,926 | ​ |  | 309,926 | ​ |  | 225,546 | ​ |  | 225,546
Club | ​ |  | 745 | ​ |  | 745 | ​ |  | 388 | ​ |  | 388
Certificates of deposit | ​ |  | 459,144 | ​ |  | 459,171 | ​ |  | 459,563 | ​ |  | 461,135
Securities sold under retail repurchase agreement | ​ |  | — | ​ |  | — | ​ |  | 4,143 | ​ |  | 4,143
Advances from FHLB - long-term | ​ | ​ | 10,094 | ​ |  | 10,052 | ​ |  | 10,135 | ​ |  | 10,187
Subordinated debt | ​ | ​ | 42,840 | ​ |  | 45,430 | ​ |  | 42,762 | ​ |  | 44,876
TBA Securities | ​ | ​ | 6 | ​ |  | 6 | ​ |  | 41 | ​ |  | 41

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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