Annual report pursuant to Section 13 and 15(d)

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2019
USD ($)
item
Sep. 30, 2019
USD ($)
Jun. 30, 2020
item
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Basis Of Presentation [Line Items]          
Advertising costs included in selling, general and administrative expenses | $       $ 4,200 $ 3,800
Customer Loyalty Programs          
Basis Of Presentation [Line Items]          
Liabilities Based On Standalone Retail Value Included In Other Accrued Expenses | $ $ 1,400     1,400 $ 1,400
Sports Wagering Agreements          
Basis Of Presentation [Line Items]          
Revenue recognition term   10 years      
Deferred revenues | $ $ 5,990 $ 6,000   $ 5,990  
Sports Wagering Agreements | INDIANA          
Basis Of Presentation [Line Items]          
Number of contracted mobile sports operators in operations | item 1        
Number of contracted mobile sports operators | item 3        
Number of contracted mobile sports operators expected to begin | item     2