Note 7 - Fair Value (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Impaired Loans, Fair Value Disclosure						$ 297,000
Impaired Loans, Valuation Allowance						30,000
Foreclosed Assets, Gross	$ 723,000		$ 723,000			952,000
Foreclosed Assets, Valuation Allowance	200,000	$ 281,000	200,000	$ 281,000	$ 219,000	227,000	$ 0	$ 0
Foreclosed Assets, Net of Valuation Reserve	523,000		523,000			$ 725,000
Foreclosed Assets Valuation Adjustments, With Valuation Reserve	0	281,000	0	281,000
Impaired Loans [Member]
Impaired Loans, Valuation Allowance	$ 30,000	$ 28,000	$ 30,000	$ 28,000