SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Shipping and Handling (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||||
| Total shipping and handling | $ 0 | $ 3,800 | $ 0 | $ 3,800 |
| Total shipping and handling costs included in distribution costs | $ 59,000 | $ 104,000 | $ 119,000 | $ 161,000 |