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Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
Sep. 30, 2023
Jul. 01, 2023
Jun. 30, 2023
Sep. 30, 2022
Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss $ 7,782   $ 7,724 $ 7,546 $ 7,160
Retained Earnings (Accumulated Deficit) $ 67,050   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