XML 61 R49.htm IDEA: XBRL DOCUMENT v3.21.2
INVENTORY - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Inventory Disclosure [Abstract]        
Change in inventory reserve $ 450,000 $ 0 $ 1,117,000 $ 611,000