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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail Textuals) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Advertising costs included in selling, general and administrative expenses $ 3,700,000 $ 3,400,000
Liability for estimated cost of benefits included in accrued player club points and progressive jackpots $ 1,300,000 $ 1,300,000
Antidilutive securities excluded from EPS calculation (in shares) 3,497,842 3,064,518
Accounting Standards Update 2015-17    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Current deferred tax assets   $ (42,000)
Current deferred tax liabilities   $ (723,000)