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STOCK BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2016
Disclosure Of Compensation Related Costs Share-Based Payments [Abstract]  
Schedule of stock based compensation expense

 

    Three Months Ended
March 31,
 
    2015     2016  
General and administrative   $ 107     $ 142  
Research and development     57       79  
Stock-based compensation costs before income taxes   $ 164     $ 221  
 
Schedule of share option activity
    Number of
Options
Outstanding
    Weighted
Average
Exercise
Price Per Share
    Weighted
Average
Remaining
Contractual
Term (Years)
    Aggregate
Intrinsic
Value ($000)
 
Options outstanding at December 31, 2015     2,475,579     $ 6.05       8.09     $  
Granted     2,094,087     $ 0.39                  
Cancelled/forfeited     (48,368 )   $ 1.75                  
Options outstanding at March 31, 2016     4,521,298     $ 3.47       6.40     $  
Unvested at March 31, 2016     (3,490,075 )   $ 0.61       6.61     $  
Vested and exercisable at March 31, 2016     1,031,223     $ 13.15       5.68     $