NET LOSS PER SHARE (Schedule of Potentially Dilutive Securities not Included in Diluted Loss Per Share Calculation) (Details)	3 Months Ended			15 Months Ended	3 Months Ended	15 Months Ended	3 Months Ended	15 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Options to purchase common shares [Member]	Mar. 31, 2014 Options to purchase common shares [Member]	Mar. 31, 2014 Unvested restricted stock units [Member]	Mar. 31, 2014 Unvested restricted stock units [Member]	Mar. 31, 2014 Convertible preferred stock [Member]	Mar. 31, 2014 Convertible preferred stock [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total potentially dilutive securities (in Shares)	634,097	1,317,568	519,500	1,172,166	7,425	38,230	107,172	107,172