Annual report pursuant to Section 13 and 15(d)

SEGMENT INFORMATION - Company's Operating Information by Geographic Areas (Details)

v3.20.1
SEGMENT INFORMATION - Company's Operating Information by Geographic Areas (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]    
Net sales $ 77,614 $ 191,910
Income (loss) from operations (7,023) 33,732
Other income, net 1,426 789
Income (loss) before income taxes (5,597) 34,521
Operating Segments    
Segment Reporting Information [Line Items]    
Income (loss) from operations 7,505 48,276
Unallocated corporate expenses    
Segment Reporting Information [Line Items]    
Income (loss) from operations (14,528) (14,544)
Primary Reporting Segment    
Segment Reporting Information [Line Items]    
Net sales 73,693 183,298
Primary Reporting Segment | Operating Segments    
Segment Reporting Information [Line Items]    
Income (loss) from operations 9,339 45,851
China    
Segment Reporting Information [Line Items]    
Net sales 2,941 7,744
China | Operating Segments    
Segment Reporting Information [Line Items]    
Income (loss) from operations (1,719) 2,579
Russia and Kazakhstan    
Segment Reporting Information [Line Items]    
Net sales 980 868
Russia and Kazakhstan | Operating Segments    
Segment Reporting Information [Line Items]    
Income (loss) from operations $ (115) $ (154)