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Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]    
Net loss $ (3,126) $ (1,818)
Other comprehensive income:    
Foreign currency translation adjustment 128 9
Defined benefit pension and other postretirement plans net of income tax expense of $49 and $61 for the three months ended June 30, 2021 and 2020, respectively 170 205
Total other comprehensive income 298 214
Total comprehensive loss $ (2,828) $ (1,604)