SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Apr. 01, 2020	Mar. 31, 2020
Subsequent Event
NDA user fee		$ 2.9
NDA user fee refund		$ 2.9
2020 ATM [Member]
Subsequent Event
Shares sold	4,535,608
Gross proceeds	$ 77.4
Share price in offering	$ 17.07
Proceeds from offering	$ 76.0