v3.8.0.1
4. BASIC AND DILUTED LOSS PER SHARE (Details) - shares
shares in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Potential common stock equivalents 3,557 3,390
Stock Options [Member]    
Potential common stock equivalents 2,476 2,107
Unvested Restricted Stock [Member]    
Potential common stock equivalents 316 518
Warrants [Member]    
Potential common stock equivalents 765 765