Note 1 - Description of the Business and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)		Jan. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)		Dec. 31, 2021 USD ($)
Percentage Of Ownership In Subsidiaries	100.00%
Number of Wholly Owned Subsidiaries	2
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss	$ 500
Financing Receivable, Accrued Interest, after Allowance for Credit Loss	3,000
Financing Receivable, Allowance for Credit Loss	11,824	[1]		$ 10,277	[1]	$ 9,279
Deferred Tax Assets, Gross	9,248			10,208
Retained Earnings (Accumulated Deficit)	$ 142,278			138,409
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss			$ 1,100	$ 1,070
Deferred Tax Assets, Gross			300
Retained Earnings (Accumulated Deficit)			800
Off-Balance-Sheet, Credit Loss, Liability			$ 100
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	40 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years

[1] The Company adopted Accounting Standards Update 2016-13 as of January 1, 2023. The 2022 amounts presented are calculated under the prior accounting standard.