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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Fair value assumptions | The fair value of each option is estimated on the date of grant using the following assumptions:
| 2012
Dividend yield | 0.00%
Expected volatility | 42%
Risk-free interest rate | 0.71%
Expected option term | 6.5 years
Stock option activity |
|  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value
Options outstanding at January 1, 2014 |  | 380,430 |  |  | $ | 8.83 |  |  |  |  |  |
Options exercised |  | (8,910 | ) |  | $ | 6.22 |  |  |  |  |  |
Options forfeited |  | (3,160 | ) |  | $ | 8.81 |  |  |  |  |  |
Options outstanding at December 31, 2014 |  | 368,360 |  |  | $ | 8.89 |  |  | 3.68 |  | $ | 1,081 |
Options vested or expected to vest at December 31, 2014 |  | 364,495 |  |  | $ | 8.91 |  |  | 3.65 |  | $ | 1,067 |
Options exercisable at December 31, 2014 |  | 302,780 |  |  | $ | 9.19 |  |  | 2.90 |  | $ | 848 |
Information related to the stock option plan during each year follows (in thousands, except per share amounts):
|  | 2014 |  | 2013 |  | 2012
Weighted-average per share grant-date fair value of options granted |  | $ | — |  |  | $ | — |  |  | $ | 3.40 |
Intrinsic value of options exercised |  | $ | 45 |  |  | $ | 82 |  |  | $ | 93 |
Cash received from options exercised |  | $ | 55 |  |  | $ | 789 |  |  | $ | 385 |
Excess tax benefit realized for option exercises |  | $ | 7 |  |  | $ | 17 |  |  | $ | 26 |

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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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