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Income Taxes - Reconciliation (Details)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
U.S. statutory rate 34.00% 34.00% 34.00%
State taxes (net of federal tax benefit) 1.70% 0.20% 1.00%
Valuation allowance (27.50%) (27.90%) (19.80%)
Interest amortization expense 0.00% 0.00% (22.50%)
Other (8.40%) (4.80%) 7.30%
Effective income tax rate reconciliation (0.20%) 1.50% 0.00%