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Note 2 - Securities (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Weighted Average Re-pricing Term (Year)	5 years 2 months 12 days	3 years 6 months
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale, Total	$ 54,551	$ 34,057
Debt Securities, Available-for-sale, Realized Gain	37	40
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities	4,700	3,300
Proceeds from Sale of Held-to-maturity Securities	0	0
Debt Securities, Available-for-sale, Restricted	83,800	66,500
Impairment Losses Related to Federal Home Loan Stock	0
Other Assets [Member]
Equity Securities without Readily Determinable Fair Value, Amount	$ 504	$ 529
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	6
Available-for-Sale Securities, Number of Securities	8
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	58	7
Available-for-Sale Securities, Number of Securities	135	101
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	37	1
Available-for-Sale Securities, Number of Securities	118	84

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Amount of realized gain 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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