Note 5 - Fair Value Measurements (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2022	Dec. 31, 2021
Estimated Selling Costs of Impaired Loans		$ 901,000
Mandatorily Redeemable Securities	$ 8,000,000.0
Notes Payable, Other Payables [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.67%
Other Borrowings [Member]
Notes Payable, Total	$ 8,200,000

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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Balance Type:	credit
Period Type:	instant