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CONCENTRATION OF RISK - Additional Information (Details) - Supplier | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Concentration Risk [Line Items] |  |  |  |
Number of suppliers from which chemical materials were purchased |  |  | 1 |
Excluding North America [Member] | Total Revenue [Member] | Customer Concentration Risk [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage (less than 1% for contracts with U.S. government agencies) | 97.00% | 97.00% | 97.00% | 97.00%

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