Income Taxes - Schedule of Deferred Income Tax Assets (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Net operating losses and tax credits	$ 48,146,000	$ 111,538,000
Property and equipment	12,995,000	12,628,000
Accruals and accrued loss contingencies	6,723,000	5,410,000
Intangible Assets	5,886,000	760,000
Gross deferred income tax assets	73,750,000	130,336,000
Prepaid expenses	(360,000)	(311,000)
Other	(322,000)	0
Gross deferred income tax liabilities	(682,000)	(311,000)
Net deferred income tax assets	73,068,000	130,025,000
Valuation allowance	0	(50,031,000)
Total deferred income tax assets	$ 73,068,000	$ 79,994,000