v3.21.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Shipping and Handling (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Total shipping and handling $ 0 $ 3,800
Total shipping and handling costs included in distribution costs $ 60,000 $ 57,000