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Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Investment Holdings [Line Items]
Amortized cost	$ 284,758	$ 356,059
Gross unrealized gains	12,542	7,266
Gross unrealized losses	(30)	(327)
Estimated fair value	297,270	362,998
US Treasury Securities [Member]
Investment Holdings [Line Items]
Amortized cost	2,000	2,300
Gross unrealized gains	37	16
Gross unrealized losses
Estimated fair value	2,037	2,316
U.S. Federal Agency Obligations [Member]
Investment Holdings [Line Items]
Amortized cost	18,804	4,015
Gross unrealized gains	138	91
Gross unrealized losses	(18)
Estimated fair value	18,924	4,106
Municipal Obligations, Tax Exempt [Member]
Investment Holdings [Line Items]
Amortized cost	136,321	142,391
Gross unrealized gains	6,367	3,513
Gross unrealized losses	(12)	(42)
Estimated fair value	142,676	145,862
Municipal Obligations, Taxable [Member]
Investment Holdings [Line Items]
Amortized cost	46,643	45,541
Gross unrealized gains	2,892	1,293
Gross unrealized losses		(55)
Estimated fair value	49,535	46,779
Agency Mortgage-backed Securities [Member]
Investment Holdings [Line Items]
Amortized cost	75,530	159,908
Gross unrealized gains	3,108	2,353
Gross unrealized losses		(230)
Estimated fair value	78,638	162,031
Certificates of Deposit [Member]
Investment Holdings [Line Items]
Amortized cost	5,460	1,904
Gross unrealized gains
Gross unrealized losses
Estimated fair value	$ 5,460	$ 1,904

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as 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=121645371&loc=d3e27161-111563

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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