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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Majority Shareholder \| Rent Expense Associated With Lease
Related Party Transaction [Line Items]
Amount of related party transaction	$ 0.1	$ 0.1	$ 0.2	$ 0.2
Director \| Protoden Intellectual Property
Related Party Transaction [Line Items]
Amount of related party transaction			0.1	$ 0.1
Annual fee under license agreement			$ 0.1