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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2014
DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockAbstract |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | The components of stock-based compensation for the years ended December 31, 2014, 2013 and 2012 were as follows:
|  | For the Year Ended December 31,
|  | 2014 |  | 2013 |  | 2012
Stock options |  | 236 |  |  | (245 | ) |  | (66 | )
Restricted stock units |  | 2,086 |  |  | 2,043 |  |  | 1,314 |
Deferred directors fees |  | — |  |  | — |  |  | 58 |
Total stock-based compensation expense |  | 2,322 |  |  | 1,798 |  |  | 1,306 |
Tax benefit of stock-based compensation expense |  | (892 | ) |  | (671 | ) |  | (472 | )
After-tax effect of stock based compensation |  | 1,430 |  |  | 1,127 |  |  | 834 |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used | Based on the results of the model, the weighted-average fair value of the stock options granted during the 12-month periods ended December 31, 2014, 2013 and 2012, respectively, were $2.20, $1.79 and $1.72 per share using the following weighted average assumptions:
|  | 2014 |  | 2013 |  | 2012
Expected dividend yield |  | — | % |  | — | % |  | — | %
Risk-free interest rate |  | 1.55 | % |  | 1.01 | % |  | 0.67 | %
Expected volatility |  | 47.4 | % |  | 55.2 | % |  | 58.6 | %
Expected life of option |  | 4.9 years |  |  | 4.7 years |  |  | 4.8 years |
Schedule of Share-based Compensation, Stock Options, Activity | The following table provides additional information regarding our stock option activity for the 12 months ended December 31, 2014:
|  | Number of Options |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Outstanding on January 1, 2014 |  | 1,688,500 |  |  | $ | 11.88 |  |  |  |  |
Granted |  | 94,500 |  |  | 5.22 |  |  |  |  |
Exercised |  | (60,000 | ) |  | 4.96 |  |  |  |  |
Expired or forfeited |  | (176,500 | ) |  | 13.01 |  |  |  |  |
Outstanding on December 31, 2014 |  | 1,546,500 |  |  | $ | 11.62 |  |  | 3.5 years |  | $ | 14 |
Exercisable on December 31, 2014 |  | 1,546,500 |  |  | $ | 11.62 |  |  | 3.5 years |  | $ | 14 |
The following table presents a summary of our stock option activity and related information for the years ended December 31:
|  | 2014 |  | 2013 |  | 2012
|  | Number of Options |  | Weighted- Average Exercise Price |  | Number of Options |  | Weighted- Average Exercise Price |  | Number of Options |  | Weighted- Average Exercise Price
Outstanding at beginning of year |  | 1,688,500 |  |  | $ | 11.88 |  |  | 1,914,000 |  |  | $ | 11.38 |  |  | 1,902,000 |  |  | $ | 11.51 |
Granted |  | 94,500 |  |  | 5.22 |  |  | 80,000 |  |  | 3.85 |  |  | 70,000 |  |  | 3.55 |
Exercised |  | (60,000 | ) |  | 4.96 |  |  | (195,000 | ) |  | 4.16 |  |  | — |  |  | — |
Expired or forfeited |  | (176,500 | ) |  | 13.01 |  |  | (110,500 | ) |  | 10.93 |  |  | (58,000 | ) |  | 6.33 |
Outstanding at end of year |  | 1,546,500 |  |  | $ | 11.62 |  |  | 1,688,500 |  |  | $ | 11.88 |  |  | 1,914,000 |  |  | $ | 11.38 |
Exercisable at end of year |  | 1,546,500 |  |  | $ | 11.62 |  |  | 1,678,500 |  |  | $ | 11.92 |  |  | 1,833,500 |  |  | $ | 11.48 |
Weighted-average fair value of options granted during the year |  |  |  | $ | 2.20 |  |  |  |  | $ | 1.79 |  |  |  |  | $ | 1.72 |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range | The following table summarizes information about stock options outstanding at December 31, 2014:
Options Outstanding |  | Options Exercisable
Range of Exercise Prices |  | Number of Options |  | Weighted- Average Remaining Contractual Life |  | Weighted- Average Exercise Price |  | Number of Options |  | Weighted- Average Exercise Price
$ 3.55 - $ 5.51 |  | 296,500 |  |  | 7.6 years |  | $ | 4.57 |  |  | 296,500 |  |  | $ | 4.57 |
$ 5.52 - $11.03 |  | 735,875 |  |  | 3.1 years |  | 8.94 |  |  | 735,875 |  |  | 8.94 |
$11.04 - $22.06 |  | 267,250 |  |  | 1.2 years |  | 14.57 |  |  | 267,250 |  |  | 14.57 |
$22.07 - $27.57 |  | 246,875 |  |  | 1.9 years |  | 24.87 |  |  | 246,875 |  |  | 24.87 |
$ 3.55 - $27.57 |  | 1,546,500 |  |  | 3.5 years |  | $ | 11.62 |  |  | 1,546,500 |  |  | $ | 11.62 |
Schedule of Nonvested Share Activity | Non-vested stock option activity for the 12 months ended December 31, 2014 was as follows:
|  | Non-Vested Stock Options Outstanding |  | Weighted-Average Grant Date Fair Value
Outstanding on January 1, 2014 |  | 10,000 |  |  | $ | 3.58 |
Granted |  | 94,500 |  |  | 2.20 |
Vested |  | (104,500 | ) |  | 2.33 |
Forfeited |  | — |  |  | — |
Outstanding on December 31, 2014 |  | — |  |  | — |
Schedule of Nonvested Restricted Stock Units Activity | A summary of restricted stock unit activity for the years ended December 31, 2014, 2013 and 2012 is as follows:
|  | Shares |  | Weighted Average Grant Date Fair Value
Unvested restricted stock units at January 1, 2012 |  | 487,165 |  |  | $ | 7.59 |
Granted |  | 349,000 |  |  | 4.82 |
Forfeited |  | (11,891 | ) |  | 7.15 |
Vested |  | (72,250 | ) |  | 8.63 |
Unvested restricted units at December 31, 2012 |  | 752,024 |  |  | 6.21 |
Granted |  | 485,000 |  |  | 4.62 |
Forfeited |  | (70,070 | ) |  | 5.58 |
Vested |  | (394,938 | ) |  | 2.94 |
Unvested restricted stock units at December 31, 2013 |  | 772,016 |  |  | 5.35 |
Granted |  | 484,450 |  |  | 5.63 |
Forfeited |  | (13,306 | ) |  | 5.27 |
Vested |  | (266,091 | ) |  | 5.84 |
Unvested restricted stock units at December 31, 2014 |  | 977,069 |  |  | 5.36 |

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