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Investment Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Marketable Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | $ 307,964 | $ 357,185
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 29 | 82
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (27,444) | (25,405)
Debt Securities, Available-for-Sale | 280,549 | 331,862
US Treasury Securities [Member] |  |
Marketable Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 20,773 | 60,552
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax |  |
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (3,223) | (4,569)
Debt Securities, Available-for-Sale | 17,550 | 55,983
US Government-sponsored Enterprises Debt Securities [Member] |  |
Marketable Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 2,500 | 2,500
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax |  |
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (492) | (426)
Debt Securities, Available-for-Sale | 2,008 | 2,074
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Marketable Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 258,775 | 263,704
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 3 | 10
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (22,188) | (19,114)
Debt Securities, Available-for-Sale | 236,590 | 244,600
Small Business Administration Securities [Member] |  |
Marketable Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 17,157 | 21,657
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 26 | 60
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (562) | (630)
Debt Securities, Available-for-Sale | 16,621 | 21,087
Corporate And Other Debt Securities [Member] |  |
Marketable Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 8,759 | 8,772
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax |  | 12
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (979) | (666)
Debt Securities, Available-for-Sale | $ 7,780 | $ 8,118

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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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