Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Accrued Liabilities [Line Items]
Accrued payroll and related employee costs	$ 4,895,000	$ 8,040,000
Accrued property taxes	997,000	1,594,000
Accrued professional fees	999,000	981,000
Lease-related accruals	352,000	354,000
Other	3,717,000	5,113,000
Accrued liabilities	10,960,000	16,082,000
Accrued severance and benefits expenses related to retirement	$ 1,602,000	1,009,000
HBN
Accrued Liabilities [Line Items]
Other		$ 3,251,000