Accounts Payable and Accrued Liabilities (Tables)
 12 Months Ended
Dec. 31, 2016
Payables and Accruals [Abstract]  
Schedule of accounts payable and accrued liabilities
Accrued liabilities consist of the following (in thousands):
 
December 31,
 
2016
 
2015
Salary and payroll tax accrual
$
6,594

 
$
5,851

Taxes payable
2,128

 
2,440

Accrued interest
2

 
8

C2 Gaming contingent consideration (see Note 2)
—

 
1,125

Placement fees payable
4,000

 
4,525

Accrued other
4,978

 
4,305

Total accrued liabilities
$
17,702

 
$
18,254