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UNAUDITED SUPPLEMENTARY QUARTERLY INFORMATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]                      
Revenues $ 3,043 $ 451 $ 26,973 $ 1,254 $ 3,908 $ 5,499 $ 17,883 $ 3,756 $ 31,721 $ 31,046 $ 54,552
Gross Profit (loss) (1,317) (263) 14,964 (994) (135) 1,931 4,855 1,685 (25,362) (27,990) (39,864)
Net (loss) income $ (7,780) $ (13,897) $ 7,144 $ (10,829) (8,030) (4,884) (4,480) (10,596) (25,245) (27,766) (39,413)
Basic Net (loss) income per share (in dollars per share) $ (0.09) $ (0.16) $ 0.09 $ (0.14)              
Diluted Net (loss) income per share (in dollars per share) $ (0.09) $ (0.16) $ 0.08 $ (0.14)              
Net (loss) income attributable to Owners of the Company $ (7,760) $ (13,812) $ 7,149 $ (10,822) $ (8,022) $ (4,766) $ (4,470) $ (10,508) $ (23,691) $ (28,785) $ (39,610)
Weighted average shares outstanding Basic (in shares) 91,105,260 87,197,294 77,513,180 75,209,456              
Weighted average shares outstanding Diluted (in shares) 91,105,260 87,197,294 86,534,484 75,209,456              
Loss per common share (in dollars per share)         $ (0.11) $ (0.07) $ (0.06) $ (0.15) $ (0.30) $ (0.39) $ (0.70)
Weighted average shares outstanding (in shares)         72,165,000 71,436,000 70,424,000 68,761,000 83,475,400 70,859,107 56,441,058