Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Accrued Liabilities [Line Items]
Accrued payroll and related employee costs	$ 7,035,000	$ 8,040,000
Accrued property taxes	1,554,000	1,594,000
Accrued professional fees	1,382,000	981,000
Lease-related accruals	353,000	354,000
Other	2,774,000	5,113,000
Accrued liabilities	$ 13,098,000	16,082,000
HBN
Accrued Liabilities [Line Items]
Other		$ 3,251,000