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Accounts Receivable
6 Months Ended
Jun. 30, 2018
Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Note 4. Accounts Receivable
 
At June 30, 2018, and December 31, 2017, no casino customer accounted for 10% or more of our accounts receivable balance.