SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Apr. 06, 2018	Mar. 27, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Subsequent Event [Line Items]
Common stock, shares authorized			47,000,000		47,000,000
Proceeds from sale of common stock			$ 0	$ 7,471
Sales of common stock, net of offering costs			$ 18,381
Common Stock
Subsequent Event [Line Items]
New shares issued (in shares)		5,714,286	5,714,286
Share price (in dollars per share)		$ 3.50
Proceeds from sale of common stock		$ 20,000
Sales of common stock, net of offering costs		$ 18,400	$ 6
Over-Allotment Option | Common Stock
Subsequent Event [Line Items]
Common stock, shares authorized		857,142
Over-Allotment Option | Common Stock | Subsequent Event
Subsequent Event [Line Items]
New shares issued (in shares)	857,142
Share price (in dollars per share)	$ 3.50
Proceeds from sale of common stock	$ 3,000
Sales of common stock, net of offering costs	$ 2,800