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Derivative Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2021
Derivative Financial Instruments |
Schedule of key elements of derivative instruments other than forward sales of mortgage loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021 |
​ |  | Notional |  | ​ |  | ​ |  |
(Dollars in thousands) | ​ | Amount | ​ | Assets | ​ | Liabilities | ​ |
Cash flow hedges: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest rate swap contracts | ​ | $ | 25,000 | ​ | $ | — | ​ | $ | 665 | ​ | ​
Not designated as hedges: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​
Customer-related interest rate swap contracts: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​
Matched interest rate swaps with borrower | ​ |  | 72,352 | ​ |  | 3,303 | ​ |  | 164 | ​ | ​
Matched interest rate swaps with counterparty | ​ | ​ | 72,352 | ​ | ​ | 164 | ​ | ​ | 3,303 | ​ | ​
Mortgage banking contracts: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
IRLCs | ​ | ​ | 83,407 | ​ | ​ | 1,523 | ​ | ​ | — | ​ | ​
Forward sales of TBA securities | ​ |  | 9,250 | ​ |  | — | ​ |  | 3 | ​ | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020 | ​
​ |  | Notional |  | ​ |  | ​ |  | ​
(Dollars in thousands) | ​ | Amount | ​ | Assets | ​ | Liabilities | ​ | ​
Cash flow hedges: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest rate swap contracts | ​ | $ | 25,000 | ​ | $ | — | ​ | $ | 1,882 | ​ | ​
Not designated as hedges: | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​
Customer-related interest rate swap contracts: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​
Matched interest rate swaps with borrower | ​ |  | 84,753 | ​ |  | 8,185 | ​ |  | — | ​ | ​
Matched interest rate swaps with counterparty | ​ | ​ | 84,753 | ​ | ​ | — | ​ | ​ | 8,185 | ​ | ​
Mortgage banking contracts: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
IRLCs | ​ | ​ | 198,632 | ​ | ​ | 4,582 | ​ | ​ | — | ​ | ​
Forward sales of TBA securities | ​ | ​ | 8,000 | ​ |  | — | ​ |  | 47 | ​ | ​

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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41620-113959 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41638-113959 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41641-113959 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579240-113959 + Details
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