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Note 15 - Subsequent Events (Details Textual) - Subsequent Event [Member]
$ / shares in Units, $ in Thousands
Feb. 22, 2022
$ / shares
Jan. 25, 2022
USD ($)
Jan. 19, 2022
USD ($)
Jan. 10, 2022
USD ($)
Mar. 01, 2022
USD ($)
Feb. 28, 2022
USD ($)
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares $ 0.06          
Collateral Deposit for Workers’ Compensation         $ 10,700 $ 14,300
Temporary Alternatives [Member]            
Significant Changes, Franchises Purchased During Period       3    
Payments to Acquire Productive Assets, Total       $ 5,250    
Dubin [Member]            
Payments to Acquire Productive Assets, Total     $ 2,400      
Northbound [Member]            
Payments to Acquire Productive Assets, Total   $ 11,000