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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 | $ (2,398) | $ (3,938) | $ (6,753) | $ (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) | $ (0.47) | $ (0.86) |
Diluted earnings per share calculation: |  |  |  |  |
Net loss | $ (2,398) | $ (3,938) | $ (6,753) | $ (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) | $ (0.47) | $ (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 |

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