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Note 5 - Goodwill (Details Textual) - USD ($)
$ in Thousands
12 Months Ended 24 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2019
Goodwill, Purchase Accounting Adjustments   $ 21,185  
Las Vegas Locals [Member] | Acquired Companies [Member]      
Goodwill, Purchase Accounting Adjustments $ 22,600    
Midwest and South [Member] | Acquired Companies [Member]      
Goodwill, Purchase Accounting Adjustments $ 89,400 $ 21,200 $ 173,900