XML 21 R47.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
INVENTORY (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Mar. 31, 2019
Inventory Disclosure [Abstract]    
Finished products $ 23,231 $ 24,847
Parts and supplies 1,195 3,353
Inventory 24,426 28,200
Estimated product returns included in inventory $ 1,054 $ 491