SUPPLEMENTAL CASH FLOW INFORMATION (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2010
Non-cash financial activities:          
Common stock options issued as payment of accrued compensation $ 962 $ 999 $ 999 $ 674  
Derivative liability reclassified to equity upon exercise of warrants $ 0 $ 80 $ 80 $ 608 $ 86