Note 2 - Securities - Maturity of Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Due in one year or less, amortized cost	$ 0
Due in one year or less, fair value	0
Due after one year through five years, amortized cost	4,607
Due after one year through five years, fair value	4,679
Due after five through ten years, amortized cost	32,691
Due after five years through ten years, fair value	33,034
Due after ten years, amortized cost	86,856
Due after ten years, fair value	87,032
Securities available-for-sale, amortized cost	186,405	$ 110,232
Securities available-for-sale, fair value	186,270	113,041
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Securities without maturity date, amortized cost	12,049
Securities without maturity date, fair value	12,035
Securities available-for-sale, amortized cost	12,049	16,151
Securities available-for-sale, fair value	12,035	16,581
Collateralized Mortgage Obligations [Member]
Securities without maturity date, amortized cost	50,202
Securities without maturity date, fair value	49,490
Securities available-for-sale, amortized cost	50,202	15,658
Securities available-for-sale, fair value	$ 49,490	$ 15,911

Amortized cost of 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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