Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS' EQUITY (Details)

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STOCKHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2018
Equity [Abstract]    
Equity offering, net (in shares) 3,943,333  
Subscription price (in USD per share) $ 3.00  
Gross proceeds from issuance of common stock $ 11,800  
Net proceeds from issuance of common stock $ 11,400 $ 11,436