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Note 13 - Notes Receivable (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Financing Receivable, after Allowance for Credit Loss $ 9,600 $ 3,500
Interest Income, Operating 263 247
Financing Receivable, Allowance for Credit Loss, Ending Balance 623 260
Notes From Non-franchisees [Member]    
Interest Income, Operating $ 0 $ 0
Minimum [Member]    
Notes Receivable, Interest Fixed Rate 6.00%  
Maximum [Member]    
Notes Receivable, Interest Fixed Rate 10.00%