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STOCK-BASED COMPENSATION (Details 1)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Weighted average risk-free interest rate    0.69% 0.69% 0.74%
Expected life of options    5 years 4 years 4 months 24 days 5 years
Expected dividend yield    0.00% 0.00% 0.00%
Weighted average expected volatility    95.69% 105.48% 89.73%