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Securities - Amortized cost and fair values, together with gross unrealized gains and losses of securities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Securities |  |
Amortized Cost | $ 245,389 |
Amortized cost | 245,389 | $ 228,607
Gross Unrealized Gains | 6 | 459
Gross Unrealized Losses | (20,716) | (11,442)
Allowance for Credit Losses | 0 |
Fair Value | 224,679 | 217,624
U.S. government agencies |  |
Securities |  |
Amortized Cost | 45,000 |
Amortized cost |  | 45,000
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (1,355) | (968)
Fair Value | 43,645 | 44,032
State and municipal obligations |  |
Securities |  |
Amortized Cost | 171,346 |
Amortized cost |  | 152,447
Gross Unrealized Gains | 6 | 459
Gross Unrealized Losses | (14,353) | (7,408)
Fair Value | 156,999 | 145,498
Subordinated Notes |  |
Securities |  |
Amortized Cost | 29,043 |
Amortized cost |  | 31,160
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (5,008) | (3,066)
Fair Value | $ 24,035 | $ 28,094

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on 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 -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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