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Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Income Statement [Abstract]        
Net (loss) income $ (660) $ (4,023) $ (3,581) $ 1,625
Other comprehensive income        
Foreign currency translation adjustments   374   62
Amortization of net prior service costs and net actuarial losses, net of tax   20   110
Other comprehensive income   394   172
Comprehensive (loss) income $ (660) $ (3,629) $ (3,581) $ 1,797