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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | The components of stock-based compensation for the years ended December 31, 2015, 2014 and 2013 were as follows:
|  | For the Year Ended December 31,
|  | 2015 |  | 2014 |  | 2013
Stock options |  | $ | 194 |  |  | $ | 236 |  |  | $ | (245 | )
Restricted stock units |  | 1,615 |  |  | 2,086 |  |  | 2,043 |
Deferred directors fees |  | — |  |  | — |  |  | — |
Total stock-based compensation expense |  | 1,809 |  |  | 2,322 |  |  | 1,798 |
Tax benefit of stock-based compensation expense |  | (696 | ) |  | (892 | ) |  | (671 | )
After-tax effect of stock based compensation |  | $ | 1,113 |  |  | $ | 1,430 |  |  | $ | 1,127 |
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, 2015, 2014 and 2013, respectively, were $1.54, $2.20 and $1.79 per share using the following weighted average assumptions:
|  | 2015 |  | 2014 |  | 2013
Expected dividend yield |  | — | % |  | — | % |  | — | %
Risk-free interest rate |  | 2.21 | % |  | 1.55 | % |  | 1.01 | %
Expected volatility |  | 51.6 | % |  | 47.4 | % |  | 55.2 | %
Expected life of option |  | 8.8 years |  |  | 4.9 years |  |  | 4.7 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, 2015:
|  | Number of Options |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Outstanding on January 1, 2015 |  | 1,546,500 |  |  | $ | 11.62 |  |  |  |  |
Granted |  | 126,000 |  |  | 2.44 |  |  |  |  |
Exercised |  | — |  |  | — |  |  |  |  |
Expired or forfeited |  | (481,375 | ) |  | 12.04 |  |  |  |  |
Outstanding on December 31, 2015 |  | 1,191,125 |  |  | $ | 10.48 |  |  | 4.3 years |  | $ | — |
Exercisable on December 31, 2015 |  | 1,191,125 |  |  | $ | 10.48 |  |  | 4.3 years |  | $ | — |
The following table presents a summary of our stock option activity and related information for the years ended December 31:
|  | 2015 |  | 2014 |  | 2013
|  | 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 |  | 1,546,500 |  |  | $ | 11.62 |  |  | 1,688,500 |  |  | $ | 11.88 |  |  | 1,914,000 |  |  | $ | 11.38 |
Granted |  | 126,000 |  |  | 2.44 |  |  | 94,500 |  |  | 5.22 |  |  | 80,000 |  |  | 3.85 |
Exercised |  | — |  |  | — |  |  | (60,000 | ) |  | 4.96 |  |  | (195,000 | ) |  | 4.16 |
Expired or forfeited |  | (481,375 | ) |  | 12.04 |  |  | (176,500 | ) |  | 13.01 |  |  | (110,500 | ) |  | 10.93 |
Outstanding at end of year |  | 1,191,125 |  |  | $ | 10.48 |  |  | 1,546,500 |  |  | $ | 11.62 |  |  | 1,688,500 |  |  | $ | 11.88 |
Exercisable at end of year |  | 1,191,125 |  |  | $ | 10.48 |  |  | 1,546,500 |  |  | $ | 11.62 |  |  | 1,678,500 |  |  | $ | 11.92 |
Weighted-average fair value of options granted during the year |  |  |  | $ | 1.54 |  |  |  |  | $ | 2.20 |  |  |  |  | $ | 1.79 |
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, 2015:
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
$ 2.44 - $ 2.75 |  | 126,000 |  |  | 9.4 years |  | $ | 2.44 |  |  | 126,000 |  |  | $ | 2.44 |
$ 2.76 - $ 5.50 |  | 294,500 |  |  | 6.7 years |  | 4.56 |  |  | 294,500 |  |  | 4.56 |
$ 5.51 - $ 8.26 |  | 100,000 |  |  | 4.8 years |  | 7.33 |  |  | 100,000 |  |  | 7.33 |
$ 8.27 - $11.02 |  | 368,750 |  |  | 3.0 years |  | 10.04 |  |  | 368,750 |  |  | 10.04 |
$11.03 - $13.77 |  | 10,000 |  |  | 0.2 years |  | 11.40 |  |  | 10,000 |  |  | 11.40 |
$13.78 - $16.53 |  | 71,000 |  |  | 1.1 years |  | 15.79 |  |  | 71,000 |  |  | 15.79 |
$16.54 - $19.29 |  | 41,250 |  |  | 1.1 years |  | 17.82 |  |  | 41,250 |  |  | 17.82 |
$19.30 - $22.05 |  | — |  |  | — |  | — |  |  | — |  |  | — |
$22.06 - $24.80 |  | 76,625 |  |  | 1.7 years |  | 22.89 |  |  | 76,625 |  |  | 22.89 |
$24.81 - $27.57 |  | 103,000 |  |  | 1.1 years |  | 25.88 |  |  | 103,000 |  |  | 25.88 |
$ 2.44 - $27.57 |  | 1,191,125 |  |  | 4.3 years |  | $ | 10.48 |  |  | 1,191,125 |  |  | $ | 10.48 |
Schedule of Nonvested Share Activity | Non-vested stock option activity for the 12 months ended December 31, 2015 was as follows:
|  | Non-Vested Stock Options Outstanding |  | Weighted-Average Grant Date Fair Value
Outstanding on January 1, 2015 |  | — |  |  | $ | — |
Granted |  | 126,000 |  |  | 1.54 |
Vested |  | (126,000 | ) |  | 1.54 |
Forfeited |  | — |  |  | — |
Outstanding on December 31, 2015 |  | — |  |  | — |
Schedule of Nonvested Restricted Stock Units Activity | A summary of restricted stock unit activity for the years ended December 31, 2015, 2014 and 2013 is as follows:
|  | Shares |  | Weighted Average Grant Date Fair Value
Unvested restricted units at January 1, 2013 |  | 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 |
Granted |  | 789,500 |  |  | 3.33 |
Forfeited |  | (209,748 | ) |  | 4.62 |
Vested |  | (351,938 | ) |  | 5.17 |
Unvested restricted stock units at December 31, 2015 |  | 1,204,883 |  |  | 4.21 |

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