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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