Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Liability for horseracing purses	$ 1,139	$ 529
Accrued payroll	1,897	1,719
Accrued redeemable points	167	67
Liability to NYSGC	360	1,012
Liability for local progressive jackpot	907	927
Accrued settlement liability	758	0
Accrued settlement liability	41,933	10,811
Accrued professional fees	308	844
Federal tax withholding payable	78	154
Accrued other	1,733	1,664
Total accrued expenses and other current liabilities	7,347	8,416
Series E
Class of Stock [Line Items]
Series E Preferred Stock payable	$ 0	$ 1,500