Note 3 - Securities - Summary of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt securities, amortized cost	$ 176,404	$ 186,405
Debt securities, gross unrealized gains	58	1,783
Debt securities, gross unrealized losses	(25,323)	(1,918)
Debt securities, fair value	151,139	186,270
US Government-sponsored Enterprises Debt Securities [Member]
Debt securities, amortized cost	6,106	8,142
Debt securities, gross unrealized gains	0	52
Debt securities, gross unrealized losses	(914)	(35)
Debt securities, fair value	5,192	8,159
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt securities, amortized cost	10,594	12,049
Debt securities, gross unrealized gains	12	116
Debt securities, gross unrealized losses	(753)	(130)
Debt securities, fair value	9,853	12,035
Collateralized Mortgage Obligations [Member]
Debt securities, amortized cost	44,978	50,202
Debt securities, gross unrealized gains	0	92
Debt securities, gross unrealized losses	(5,328)	(804)
Debt securities, fair value	39,650	49,490
US States and Political Subdivisions Debt Securities [Member]
Debt securities, amortized cost	89,295	92,307
Debt securities, gross unrealized gains	5	1,099
Debt securities, gross unrealized losses	(17,459)	(844)
Debt securities, fair value	71,841	92,562
Corporate Debt Securities [Member]
Debt securities, amortized cost	25,431	23,705
Debt securities, gross unrealized gains	41	424
Debt securities, gross unrealized losses	(869)	(105)
Debt securities, fair value	$ 24,603	$ 24,024

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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