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Capital Transactions (Details 2) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
RSUs |  |  |
Share-based compensation, additional disclosures |  |  |
Share-based compensation expense | $ 600,000 | $ 800,000 |
Unrecognized share-based compensation expense | $ 2,800,000 |  | $ 2,500,000
Weighted-average period over which the remaining compensation expense is expected to be recognized | 1 year 9 months 18 days |  |
Minimum statutory withholding requirement paid on behalf of employees (in shares) | 20,000 |  |
Performance-based RSUs |  |  |
Share-based compensation, additional disclosures |  |  |
Share-based compensation expense | $ 0 | 0 |
Performance-based RSUs | Maximum |  |  |
Share-based compensation, additional disclosures |  |  |
Potential compensation expense | $ 3,300,000 |  |
2012 Stock Incentive Plan | RSUs |  |  |
Number of Shares |  |  |
Units outstanding at the beginning of the period (in shares) | 744,000 |  |
Granted (in shares) | 167,000 |  |
Forfeited (in shares) | (125,000) |  |
Issued (in shares) | (2,000) |  |
Units outstanding at the end of the period (in shares) | 784,000 |  |
Weighted Average Grant Date Fair Value |  |  |
Units outstanding at the beginning of the period (in dollars per share) | $ 12.48 |  |
Granted (in dollars per share) | 8.73 |  |
Forfeited (in dollars per share) | 13.17 |  |
Issued (in dollars per share) | 13.45 |  |
Units outstanding at the end of the period (in dollars per share) | $ 11.53 |  |
2012 Stock Incentive Plan | RSUs | Minimum |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 12 months |  |
2012 Stock Incentive Plan | RSUs | Maximum |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 48 months |  |
2012 Stock Incentive Plan | RSUs | Board of Directors |  |  |
Number of Shares |  |  |
Number of shares subject to restriction period | 59,000 |  | 60,000
Restriction period | 2 years |  |
2012 Stock Incentive Plan | Performance-based RSUs |  |  |
Share-based compensation, additional disclosures |  |  |
Weighted-average grant date fair value (in dollars per share) | $ 8.16 |  |
2012 Stock Incentive Plan | Time-based RSUs |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 3 years |  |
Weighted-average grant date fair value (in dollars per share) | $ 9.08 |  |
2012 Stock Incentive Plan | SARs |  |  |
Number of Shares |  |  |
Units outstanding at the beginning of the period (in shares) | 20,000 |  |
Granted (in shares) | 0 |  |
Forfeited (in shares) | 0 |  |
Issued (in shares) | 0 |  |
Units outstanding at the end of the period (in shares) | 20,000 |  |
Weighted Average Grant Date Fair Value |  |  |
Units outstanding at the beginning of the period (in dollars per share) | $ 5.27 |  |
Granted (in dollars per share) | 0.00 |  |
Forfeited (in dollars per share) | 0.00 |  |
Issued (in dollars per share) | 0.00 |  |
Units outstanding at the end of the period (in dollars per share) | $ 5.27 |  |
Share-based compensation, additional disclosures |  |  |
Number of shares of common stock used for determining the fair value, or strike price, of grants | 1 |  |
Share-based compensation expense | $ 1,000 | $ 3,000 |
Unrecognized share-based compensation expense | $ 0 |  | $ 0
Weighted-average period over which the remaining compensation expense is expected to be recognized | 1 year 10 months 24 days |  |
2012 Stock Incentive Plan | SARs | Minimum |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 12 months |  |
2012 Stock Incentive Plan | SARs | Maximum |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 48 months |  |
2012 Stock Incentive Plan | Net Sales and Operating Income Targets [Member] | Performance-based RSUs |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 3 years |  |
2012 Stock Incentive Plan | Earnings Per Share Targets [Member] | Performance-based RSUs |  |  |
Share-based compensation, additional disclosures |  |  |
Vesting period | 6 years |  |

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