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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events On April 17, 2019, the Company entered into a Thirteenth Amendment to the Loan and Security Agreement with CIBC Bank USA to reduce our borrowing capacity to $7,000; lessen restrictions surrounding acquisitions, business investments, distributions and disposition of assets; eliminate the mandatory prepayment requirement with respect to proceeds from asset sales and capital and debt financings; and eliminate the annual capital expenditure covenant.