DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Credit Risk (Details) - Accounts Receivable - Customer Concentration Risk	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Three specialty distributors
Percentage	85.00%	97.00%
US Government and from other collaboration partners
Percentage	15.00%	3.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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