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Basis of Presentation and Nature of Operations (Details) - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Cash and cash equivalents $ 34,244,000 $ 98,875,000
Restricted cash 2,432,000 $ 2,429,000
Revolving Credit Facility | Second Amended and Restated ABL Credit Agreement    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 75,000,000.0