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Share-Based Payments (Tables) | 12 Months Ended
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Dec. 31, 2014
Shareholders' Equity and Share-based Payments [Abstract] |
Share-based Compensation - Black-Scholes assumptions | In applying the Black-Scholes methodology to the options granted, the Company used the following assumptions:
| Year ended December 31,
| 2014 |  | 2013
Risk-free interest rate, average | 2.2% |  | 1.8%
Expected option life, average | 8.2 years |  | 6.8 years
Expected price volatility, average | 47.6% |  | 49.8%
Expected dividend yield | —% |  | —%
Schedule of Share-based Compensation, Stock Options, Activity | The following table shows the stock option activity:
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value
As of December 31, 2013 | 1,111,274 |  |  | $ | 5.15 |  |  |  |  |
Granted | 193,500 |  |  | 8.83 |  |  |  |  |
Expired and canceled | (29,532 | ) |  | 6.87 |  |  |  |  |
Forfeited prior to vesting | (729 | ) |  | 8.88 |  |  |  |  |
Exercised | (234,432 | ) |  | 5.72 |  |  |  |  |
As of December 31, 2014 | 1,040,081 |  |  | $ | 5.65 |  |  | 5.60 |  | $ | 4,286 |
Vested and Expected to Vest at December 31, 2014 | 1,040,081 |  |  | $ | 5.65 |  |  | 5.60 |  | $ | 4,286 |
Vested at December 31, 2014 | 730,016 |  |  | $ | 4.67 |  |  | 4.15 |  | $ | 3,721 |

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- Definition Shareholders' Equity and Share-based Payments [Abstract] + References No definition available. + Details
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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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