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SHARE-BASED COMPENSATION (Tables)
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12 Months Ended |
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Dec. 31, 2013
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| SHARE-BASED COMPENSATION [Abstract] |
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| Schedule of Assumptions Used to Estimate Fair Value |
The fair value of each share-based award is estimated at grant date during 2013 using the Black-Scholes option-pricing model based on the following assumptions: | Year ended December 31 | | 2012 | | 2013 | | | | | | | | Risk-free interest rate (1) | | 0.11% - 2.66% | | 0.11% - 2.66% | | Expected life (2) | | 2-5 years | | 2-5 years | | Expected volatility (3) | | 39.97%-42.04% | | 39.17%-42.04% | | Dividend yield (4) | | Nil | | Nil | |
| Summary of Stock Options Activity |
A summary of stock option activity is as follows: | | | | | | Weighted | | | Weighted | | | | | | | | average | | | average | | | | | Number | | | exercise price | | | fair value | | | | | of options | | | per option | | | at grant date | | | | | | | | | | | | | | Outstanding at December 31, 2011 | | | 7,356,249 | | | $ | 1.40 | | | $ | 1.01 | | | Exercised | | | (1,635,252 | ) | | $ | 1.40 | | | $ | 1.01 | | | Forfeited | | | (751,425 | ) | | $ | 1.40 | | | $ | 1.01 | | | Expired | | | (91,475 | ) | | $ | 1.40 | | | $ | 1.01 | | | Outstanding at December 31, 2012 | | | 4,878,097 | | | $ | 1.40 | | | $ | 1.01 | | | Granted on April 1, 2013 | | | 280,000 | | | $ | 2.58 | | | $ | 0.05 | | | Exercised | | | (2,172,103 | ) | | $ | 1.40 | | | $ | 1.21 | | | Forfeited | | | (68,005 | ) | | $ | 1.40 | | | $ | 1.12 | | | Expired | | | (21,650 | ) | | $ | 1.40 | | | $ | 1.27 | | | Outstanding at December 31, 2013 | | | 2,896,339 | | | $ | 1.51 | | | $ | 0.77 | | |
| Summary of Stock Options Outstanding |
The following table summarizes information with respect to stock options outstanding at December 31, 2012 and 2013: | | | | | | | | | | | | | | | Options exercisable | | | | | Options outstanding as of December 31, 2012 | | | as of December 31, 2012 | | | | | | | | | | | Weighted | | | | | | | | | Weighted | | | | | | | | | | | Weighted | | | average | | | | | | | | | average | | | | | | | | | | | average | | | exercise | | | Aggregate | | | Number | | | exercise | | | Aggregate | | | | | Number | | | contractual | | | price | | | intrinsic | | | of | | | price | | | intrinsic | | | | | of option | | | period | | | per option | | | value | | | options | | | per option | | | value | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ordinary shares | | | 4,878,097 | | | | 5 years | | | $ | 1.40 | | | $ | 17,957 | | | | 2,839,857 | | | $ | 1.40 | | | $ | 2,507 | | | | | | | | | | | | | | | | | Options exercisable | | | | | Options outstanding as of December 31, 2013 | | | as of December 31, 2013 | | | | | | | | | | | Weighted | | | | | | | | | Weighted | | | | | | | | | | | Weighted | | | average | | | | | | | | | average | | | | | | | | | | | average | | | exercise | | | Aggregate | | | Number | | | exercise | | | Aggregate | | | | | Number | | | contractual | | | price | | | intrinsic | | | of | | | price | | | intrinsic | | | | | of option | | | period | | | per option | | | value | | | options | | | per option | | | value | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ordinary shares | | | 2,896,339 | | | | 5 years | | | $ | 1.51 | | | $ | 22,301 | | | | 2,839,857 | | | $ | 1.40 | | | $ | 2,154 | | |
| Schedule of RSU Activity |
A summary of RSU activity is as follows: | | | For the year ended | | | | | December 31, 2012 | | | | | Number | | | | | of options | | | | | | | | | Outstanding at December 31, 2011 | | | 234,000 | | | Granted on January 17, 2012 | | | 100,000 | | | Granted on May 8, 2012 | | | 313,250 | | | Exercised | | | (31,500 | ) | | Forfeited | | | (34,100 | ) | | Outstanding at December 31, 2012 | | | 581,650 | | | Granted on April 1, 2013 | | | 1,217,600 | | | Exercised | | | (173,350 | ) | | Forfeited | | | (6,300 | ) | | Outstanding at December 31, 2013 | | | 1,574,000 | | |