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SHARE BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2016
SHARE BASED COMPENSATION [Abstract] |
Schedule of Assumptions Used |
|  | Year Ended December 31, 2014 |
|  | Average |  |  |  |  |  |  |  | Post- |
|  | risk-free |  |  |  |  |  |  |  | vesting |
Options |  | rate of |  | Exercise |  | Volatility |  | Dividend |  | forfeiture |
granted |  | return |  | multiple |  | rate |  | yield |  | rate |
January 28, 2014 |  | 2.77% |  | 3.0-3.5 times |  | 93.0% |  | 0% |  | 3-9.5% |
|  | Year Ended December 31, 2015
|  | Average |  |  |  |  |  |  |  | Post- |
|  | risk-free |  |  |  |  |  |  |  | vesting |
Options |  | rate of |  | Exercise |  | Volatility |  | Dividend |  | forfeiture |
granted |  | return |  | multiple |  | rate |  | yield |  | rate |
January 12, 2015 |  | 2.82% |  | 1.8-3 times |  | 93.0% |  | 0% |  | 5%-8% |
July 06, 2015 |  | 3.20% |  | 3 times |  | 91.0% |  | 0% |  | 5% |
September 09, 2015 |  | 2.94%-3.08% |  | 1.8-3 times |  | 91.0%-92.0% |  | 0% |  | 5%-8% |
Summary of Stock Option Activity |
|  |  |  | Weighted |  | Weighted |  |  |
|  |  |  | Average |  | Average |  | Aggregate |
|  | Number of |  | Exercise |  | Remaining |  | Intrinsic |
|  | Options |  | Price |  | Contract Life |  | Value |
Options outstanding on January 1, 2016 |  |  | 17,528,541 |  |  | 0.50 |  |  |  |  |  |  |
Granted |  |  | — |  |  | — |  |  |  |  |  |  |
Forfeited |  |  | (147,235) |  |  | 0.59 |  |  |  |  |  |  |
Expired |  |  | (2,465) |  |  | 0.15 |  |  |  |  |  |  |
Exercised |  |  | (2,119,700) |  |  | 0.50 |  |  |  |  |  |  |
Options outstanding on December 31, 2016 |  |  | 15,259,141 |  |  | 0.50 |  |  | 6.46 |  |  | 4,304,907 |
Options vested or expected to vest on December 31, 2016 |  |  | 17,037,682 |  |  | 0.44 |  |  | 5.79 |  |  | 5,691,147 |
Options exercisable on December 31, 2016 |  |  | 11,902,422 |  |  | 0.47 |  |  | 6.05 |  |  | 3,691,299 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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