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Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Investment Holdings [Line Items] |  |
Amortized cost | $ 375,579 | $ 279,298
Gross unrealized gains | 7,065 | 12,542
Gross unrealized losses | (1,927) | (30)
Estimated fair value | 380,717 | 291,810
US Treasury Securities [Member] |  |
Investment Holdings [Line Items] |  |
Amortized cost | 43,098 | 2,000
Gross unrealized gains |  | 37
Gross unrealized losses | (423) |
Estimated fair value | 42,675 | 2,037
U.S. Federal Agency Obligations [Member] |  |
Investment Holdings [Line Items] |  |
Amortized cost | 17,165 | 18,804
Gross unrealized gains | 67 | 138
Gross unrealized losses | (37) | (18)
Estimated fair value | 17,195 | 18,924
Municipal Obligations, Tax Exempt [Member] |  |
Investment Holdings [Line Items] |  |
Amortized cost | 133,558 | 136,321
Gross unrealized gains | 4,488 | 6,367
Gross unrealized losses | (62) | (12)
Estimated fair value | 137,984 | 142,676
Municipal Obligations, Taxable [Member] |  |
Investment Holdings [Line Items] |  |
Amortized cost | 39,011 | 46,643
Gross unrealized gains | 1,171 | 2,892
Gross unrealized losses | (136) |
Estimated fair value | 40,046 | 49,535
Agency Mortgage-backed Securities [Member] |  |
Investment Holdings [Line Items] |  |
Amortized cost | 142,747 | 75,530
Gross unrealized gains | 1,339 | 3,108
Gross unrealized losses | (1,269) |
Estimated fair value | $ 142,817 | $ 78,638

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- Definition Amortized cost 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 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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