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Note 10 - Notes Receivable (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 01, 2021
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Mar. 22, 2021
Financing Receivable, after Allowance for Credit Loss, Total   $ 3,700   $ 3,700   $ 3,900  
Interest Income, Operating, Total   51 $ 54 198 $ 285    
Financing Receivable, Allowance for Credit Loss, Ending Balance   $ 405   $ 405   $ 405  
License Fee, Percentage of Gross Margin   9.00%   9.00%      
Link Staffing Acquisition [Member]              
License Fee, Percentage of Gross Margin   9.00%   9.00%     9.00%
Receivable in Connection With Sale of California Locations [Member]              
Financing Receivable, after Allowance for Credit Loss, Total   $ 71   $ 71      
Notes Receivable, Interest Fixed Rate       6.00%      
Notes From Non-franchisees [member]              
Interest Income, Operating, Total   $ 0 $ 0 $ 0 $ 83    
Snelling Staffing Acquisition [Member]              
Royalty Fee, Percentage of Gross Margin 9.00%     9.00%      
Minimum [Member]              
Notes Receivable, Interest Fixed Rate       6.00%      
Maximum [Member]              
Notes Receivable, Interest Fixed Rate       10.00%