Note 1a - Nature of Operations, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)
Number of Operating Segments	5
Non Accrual Contractual Due (Day)	90 days
Financing Receivable, Individually Evaluated for Impairment	$ 69,963,000	$ 91,976,000
Stock Repurchase Program, Repurchased, Shares (in shares) | shares	904,152	447,108
Accrued Excise Tax Through Equity	$ 200,000
Goodwill, Impairment Loss	0	$ 0	$ 0
Minimum [Member]
Financing Receivable, Individually Evaluated for Impairment	$ 250,000
Minimum [Member] | Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)	4 years
Minimum [Member] | Furniture Fixtures and Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Minimum [Member] | Nonaccrual Loans [Member]
Financing Receivable, Individually Evaluated for Impairment	$ 250,000
Maximum [Member] | Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)	30 years
Maximum [Member] | Furniture Fixtures and Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years