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FINANCIAL STATEMENT PRESENTATION (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Basis of Presentation and Principles of Consolidation
Number of operating segments | segment	1
Allowance for doubtful accounts	$ 200		$ 200
Restructuring
Restructuring		$ 418
Reduction of discretionary cash incentives		$ 1,600

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Amount of allowance for credit loss on accounts receivable.

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