EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Basic earnings per share calculation:
Net loss	$ (2,491)	$ (3,938)	$ (7,703)	$ (12,029)	$ (17,907)
Weighted average number of common shares outstanding	14,524,522	14,093,122	14,405,498	14,021,563
Basic net loss per share (in dollars per share)	$ (0.17)	$ (0.28)	$ (0.53)	$ (0.86)
Diluted earnings per share calculation:
Net loss	$ (2,491)	$ (3,938)	$ (7,703)	$ (12,029)	$ (17,907)
Weighted average number of common shares outstanding	14,524,522	14,093,122	14,405,498	14,021,563
Weighted average number of common shares outstanding	14,524,522	14,093,122	14,405,498	14,021,563
Diluted net loss per share (in dollars per share)	$ (0.17)	$ (0.28)	$ (0.53)	$ (0.86)
Stock options and unvested restricted stock units granted and outstanding excluded from the computation of diluted earnings per share, due to the anti-dilutive effect (in shares)			974,296	1,064,525