STOCKHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands			6 Months Ended
	Apr. 06, 2018	Mar. 27, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Class of Stock [Line Items]
Common stock, shares authorized			47,000,000		47,000,000
Net proceeds from the sale of common stock from private placement offering			$ 0	$ 7,468
Net proceeds from units issued in the period			$ 21,190
Preferred stock, shares authorized			3,000,000		3,000,000
Common Stock
Class of Stock [Line Items]
New shares issued (in shares)		5,714,286	6,571,428
Share price (in dollars per share)		$ 3.50
Net proceeds from the sale of common stock from private placement offering		$ 20,000
Net proceeds from units issued in the period		$ 18,400	$ 7
Over-Allotment Option | Common Stock
Class of Stock [Line Items]
New shares issued (in shares)	857,142
Share price (in dollars per share)	$ 3.50
Net proceeds from the sale of common stock from private placement offering	$ 3,000
Net proceeds from units issued in the period	$ 2,800