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Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Investment Holdings [Line Items]
Amortized cost	$ 287,069	$ 356,059
Gross unrealized gains	12,481	7,266
Gross unrealized losses	(20)	(327)
Estimated fair value	299,530	362,998
US Treasury Securities [Member]
Investment Holdings [Line Items]
Amortized cost	2,000	2,300
Gross unrealized gains	47	16
Gross unrealized losses
Estimated fair value	2,047	2,316
U.S. Federal Agency Obligations [Member]
Investment Holdings [Line Items]
Amortized cost	18,860	4,015
Gross unrealized gains	146	91
Gross unrealized losses	(18)
Estimated fair value	18,988	4,106
Municipal Obligations, Tax Exempt [Member]
Investment Holdings [Line Items]
Amortized cost	135,700	142,391
Gross unrealized gains	6,179	3,513
Gross unrealized losses	(2)	(42)
Estimated fair value	141,877	145,862
Municipal Obligations, Taxable [Member]
Investment Holdings [Line Items]
Amortized cost	45,414	45,541
Gross unrealized gains	2,965	1,293
Gross unrealized losses		(55)
Estimated fair value	48,379	46,779
Agency Mortgage-backed Securities [Member]
Investment Holdings [Line Items]
Amortized cost	80,421	159,908
Gross unrealized gains	3,144	2,353
Gross unrealized losses		(230)
Estimated fair value	83,565	162,031
Certificates of Deposit [Member]
Investment Holdings [Line Items]
Amortized cost	4,674	1,904
Gross unrealized gains
Gross unrealized losses
Estimated fair value	$ 4,674	$ 1,904

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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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