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Note 10 - Notes Receivable (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 01, 2021
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Mar. 22, 2021
Financing Receivable, after Allowance for Credit Loss, Total   $ 4,000   $ 4,000   $ 3,900  
Interest Income, Operating, Total   54 $ 96 147 $ 231    
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%      
Additional Impairment on Financing Receivable       $ 233      
Notes From Non-franchisees [member]              
Interest Income, Operating, Total   $ 0 $ 96 $ 41 $ 231    
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%