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Fair value of financial instruments - Carrying and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Investment securities: |  |
Available-for-sale | $ 477,703 | $ 517,321
Common equity securities | 110 | 140
Held-to-maturity | 76,563 | 70,446
Loans held for sale |  | 408
Mortgage servicing rights | 914 | 882
Financial liabilities: |  |
Subordinated debentures | 33,000 | 33,000
Carrying Value |  |
Financial assets: |  |
Cash and due from banks | 37,868 | 279,933
Investment securities: |  |
Available-for-sale | 477,703 | 517,321
Common equity securities | 110 | 140
Held-to-maturity | 91,179 | 71,213
Loans held for sale |  | 408
Net loans | 2,702,644 | 2,300,790
Accrued interest receivable | 11,715 | 8,528
Mortgage servicing rights | 914 | 882
Restricted equity securities (FHLB and other) | 9,630 | 4,045
Interest rate floor | 1 | 844
Interest rate swaps | 21,794 | 8,767
Total assets | 3,353,558 | 3,192,871
Financial liabilities: |  |
Deposits | 3,046,598 | 2,963,397
Short-term borrowings | 114,930 |
Long-term debt | 555 | 2,711
Subordinated debentures | 33,000 | 33,000
Accrued interest payable | 903 | 408
Interest rate swap | 21,466 | 8,811
Total liabilities | 3,217,452 | 3,008,327
Fair Value |  |
Financial assets: |  |
Cash and due from banks | 37,868 | 279,933
Investment securities: |  |
Available-for-sale | 477,703 | 517,321
Common equity securities | 110 | 140
Held-to-maturity | 76,563 | 70,446
Loans held for sale |  | 408
Net loans | 2,562,780 | 2,261,586
Accrued interest receivable | 11,715 | 8,528
Mortgage servicing rights | 1,762 | 1,357
Restricted equity securities (FHLB and other) | 9,630 | 4,045
Interest rate floor | 1 | 844
Interest rate swaps | 21,794 | 8,767
Total assets | 3,199,926 | 3,153,375
Financial liabilities: |  |
Deposits | 3,035,615 | 2,963,547
Short-term borrowings | 114,743 |
Long-term debt | 555 | 2,778
Subordinated debentures | 53,998 | 32,337
Accrued interest payable | 903 | 408
Interest rate swap | 21,466 | 8,811
Total liabilities | 3,227,280 | 3,007,881
Level 1 |  |
Financial assets: |  |
Cash and due from banks | 37,868 | 279,933
Investment securities: |  |
Available-for-sale | 180,297 | 191,574
Common equity securities | 110 | 140
Level 2 |  |
Investment securities: |  |
Available-for-sale | 297,406 | 325,747
Held-to-maturity | 76,563 | 70,446
Loans held for sale |  | 408
Accrued interest receivable | 11,715 | 8,528
Mortgage servicing rights | 1,762 | 1,357
Restricted equity securities (FHLB and other) | 9,630 | 4,045
Interest rate floor | 1 | 844
Interest rate swaps | 21,794 | 8,767
Financial liabilities: |  |
Deposits | 3,035,615 | 2,963,547
Short-term borrowings | 114,743 |
Long-term debt | 555 | 2,778
Subordinated debentures | 53,998 | 32,337
Accrued interest payable | 903 | 408
Interest rate swap | 21,466 | 8,811
Level 3 |  |
Investment securities: |  |
Net loans | $ 2,562,780 | $ 2,261,586

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents accrued interest payable as of the balance sheet date. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents accrued interest receivable as of the balance sheet date. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI https://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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