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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Net loss $ (1,951) $ (3,868)
Other comprehensive income (loss), net of tax:    
Pension liability adjustment 24 102
Unrealized gain (loss) on cash flow hedges 25 (7)
Other comprehensive income, net of tax 49 95
Comprehensive loss $ (1,902) $ (3,773)