Note 3 - Securities - Summary of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt securities, amortized cost	$ 169,927	$ 186,405
Debt securities, gross unrealized gains	28	1,783
Debt securities, gross unrealized losses	(34,533)	(1,918)
Debt securities, fair value	135,422	186,270
US Government-sponsored Enterprises Debt Securities [Member]
Debt securities, amortized cost	6,104	8,142
Debt securities, gross unrealized gains	0	52
Debt securities, gross unrealized losses	(1,297)	(35)
Debt securities, fair value	4,807	8,159
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt securities, amortized cost	6,794	12,049
Debt securities, gross unrealized gains	0	116
Debt securities, gross unrealized losses	(825)	(130)
Debt securities, fair value	5,969	12,035
Collateralized Mortgage Obligations [Member]
Debt securities, amortized cost	42,874	50,202
Debt securities, gross unrealized gains	0	92
Debt securities, gross unrealized losses	(7,389)	(804)
Debt securities, fair value	35,485	49,490
US States and Political Subdivisions Debt Securities [Member]
Debt securities, amortized cost	89,237	92,307
Debt securities, gross unrealized gains	0	1,099
Debt securities, gross unrealized losses	(23,432)	(844)
Debt securities, fair value	65,805	92,562
Corporate Debt Securities [Member]
Debt securities, amortized cost	24,918	23,705
Debt securities, gross unrealized gains	28	424
Debt securities, gross unrealized losses	(1,590)	(105)
Debt securities, fair value	$ 23,356	$ 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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