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Note 3 - Debt Securities - Securities Available-for-sale (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Securities available for sale, amortized cost	$ 96,514	$ 168,478
Securities available for sale, unrealized gains	1,857	1,266
Securities available for sale, unrealized losses	(4)	(170)
Securities available for sale, fair value	98,367	169,574	[1]
US Government Agencies Debt Securities [Member]
Securities available for sale, amortized cost	597	5,038
Securities available for sale, unrealized gains	0	0
Securities available for sale, unrealized losses	(4)	(4)
Securities available for sale, fair value	593	5,034
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, amortized cost	61,722	85,992
Securities available for sale, unrealized gains	769	886
Securities available for sale, unrealized losses	0	0
Securities available for sale, fair value	62,491	86,878
Mortgage-backed Agency Securities [Member]
Securities available for sale, amortized cost	34,195	77,448
Securities available for sale, unrealized gains	1,088	380
Securities available for sale, unrealized losses	0	(166)
Securities available for sale, fair value	$ 35,283	$ 77,662
[1] Derived from audited financial statements

X

- 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).

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