COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2014 patent defendant	Mar. 31, 2020 defendant	Dec. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Number of defendants with cases settled		1
Litigation settlement, amount awarded to other party | $			$ 1.3
Quest Integrity
Loss Contingencies [Line Items]
Number of patents allegedly infringed upon | patent	3
Number of defendants	3
Delaware Cases | Quest Integrity
Loss Contingencies [Line Items]
Number of defendants	2
Washington Case | Quest Integrity
Loss Contingencies [Line Items]
Number of defendants	1