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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Net Loss Per Share |  |  |  |
Potential dilutive securities excluded from diluted loss per share calculation (in shares) | 1,926,886 | 138,344 | 3,205,962 | 7,183
Minimum |  |  |  |
Marketable securities |  |  |  |
Original maturity period of marketable securities |  |  | 5 months |
Maximum |  |  |  |
Marketable securities |  |  |  |
Original maturity period of marketable securities |  |  | 19 months |

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