Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023	Jul. 01, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss	$ 7,987	$ 7,782		$ 7,724	$ 7,675	$ 7,546	$ 7,160
Retained Earnings (Accumulated Deficit)	$ 68,504			65,485
Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss				$ 52
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss			$ 52
Off-Balance-Sheet, Credit Loss, Liability			308
Retained Earnings (Accumulated Deficit)			(285)
Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Financing Receivable, Allowance for Credit Loss			$ 75