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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Net loss $ (5,686) $ (2,068) $ (7,637) $ (5,936)
Other comprehensive income (loss), net of tax:        
Pension liability adjustment 37 102 61 204
Unrealized gain (loss) on cash flow hedges 10 (7) 35 (14)
Other comprehensive income, net of tax 47 95 96 190
Comprehensive loss $ (5,639) $ (1,973) $ (7,541) $ (5,746)