STOCKHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 27, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Class of Stock [Line Items]
Common stock, shares authorized		47,000,000		47,000,000
Net proceeds from units issued in the period		$ 18,381
Preferred stock, shares authorized		3,000,000		3,000,000
Net proceeds from the sale of common stock from private placement offering		$ 0	$ 7,471
Common Stock
Class of Stock [Line Items]
Net proceeds from units issued in the period	$ 18,400	$ 6
New shares issued (in shares)	5,714,286	5,714,286
Share price (in dollars per share)	$ 3.50
Net proceeds from the sale of common stock from private placement offering	$ 20,000