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Summary of the stock option activity and changes during the period (Details)
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Shares
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Weighted Average Exercise Price
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Weighted Average Remaining contractual Term (years)
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Aggregate Intrinsic Value
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|---|---|---|---|---|
| Outstanding at Dec. 31, 2013 | 2,647,500 | 4.01 | 0 | 0 |
| Granted | 28,000 | 14.98 | 0 | 0 |
| Forfeited | (172,000) | 5.44 | 0 | 0 |
| Exercised | (149,000) | 2.84 | 0 | 0 |
| Exercisable at Sep. 30, 2014 | 546,300 | 3.35 | 7.7 | 0 |
| Outstanding at Sep. 30, 2014 | 2,354,500 | 4.11 | 8.0 | 25,043,460 |
| X | ||||||||||
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- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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