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Investment Securities - Comparison of Amortized Cost and Fair Value of Securities Available for Sale (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 161,145 | $ 81,448
Gross Unrealized Gains | 1,491 | 1,134
Gross Unrealized Losses | (904) | (241)
Fair Value (Carrying Amount) | 161,732 | 82,341
U.S. Government agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 35,830 | 33,800
Gross Unrealized Gains | 289 | 142
Gross Unrealized Losses | (81) | (232)
Fair Value (Carrying Amount) | 36,038 | 33,710
U.S. Government sponsored entities & agencies collateralized by mortgage obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 64,720 | 37,732
Gross Unrealized Gains | 454 | 722
Gross Unrealized Losses | (142) | (9)
Fair Value (Carrying Amount) | 65,032 | 38,445
Asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 4,674 | 3,871
Gross Unrealized Gains | 22 | 38
Gross Unrealized Losses | 0 | 0
Fair Value (Carrying Amount) | 4,696 | 3,909
Municipal bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 50,921 | 1,045
Gross Unrealized Gains | 217 | 13
Gross Unrealized Losses | (681) | 0
Fair Value (Carrying Amount) | 50,457 | 1,058
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 5,000 | 5,000
Gross Unrealized Gains | 509 | 219
Gross Unrealized Losses | 0 | 0
Fair Value (Carrying Amount) | $ 5,509 | $ 5,219

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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