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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - segment	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Concentration Risk [Line Items]
Number of operating segments	1		1
Maximum
Concentration Risk [Line Items]
Percent of total net assets outside of the U.S. (as a percent)	10.00%
Accounts Receivable | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage			30.00%
Accounts Receivable | Customer C
Concentration Risk [Line Items]
Concentration risk, percentage			20.00%
Accounts Receivable | Customer D
Concentration Risk [Line Items]
Concentration risk, percentage			17.00%
Accounts Receivable | Customers | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	15.00%		30.00%
Accounts Receivable | Customers | Customer C
Concentration Risk [Line Items]
Concentration risk, percentage	13.00%		20.00%
Accounts Receivable | Customers | Customer D
Concentration Risk [Line Items]
Concentration risk, percentage	36.00%		17.00%
Revenue | Customers | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	14.00%
Revenue | Customers | Customer E
Concentration Risk [Line Items]
Concentration risk, percentage	39.00%
Revenue | Customers | Customer F
Concentration Risk [Line Items]
Concentration risk, percentage		16.00%

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The percentage of total net assets outside of the U.S.

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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