XML 54 R41.htm IDEA: XBRL DOCUMENT v3.20.4
NET SALES - Disaggregate revenue by location (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of revenue:      
Net sales $ 239,825 $ 292,136 $ 298,616
Domestic      
Disaggregation of revenue:      
Net sales 228,092 275,133 279,175
International      
Disaggregation of revenue:      
Net sales $ 11,733 $ 17,003 $ 19,441