Quarterly report pursuant to Section 13 or 15(d)

Capital Transactions (Details 2)

v3.5.0.2
Capital Transactions (Details 2) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
RSUs          
Share-based compensation, additional disclosures          
Share-based compensation expense $ 600,000 $ 800,000 $ 1,800,000 $ 2,100,000  
Unrecognized share-based compensation expense 2,300,000   $ 2,300,000   $ 2,500,000
Weighted-average period over which the remaining compensation expense is expected to be recognized     1 year 6 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   $ 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)     246,000    
Forfeited (in shares)     (154,000)    
Issued (in shares)     (10,000)    
Units outstanding at the end of the period (in shares) 826,000   826,000    
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)     9.33    
Forfeited (in dollars per share)     13.05    
Issued (in dollars per share)     11.73    
Units outstanding at the end of the period (in dollars per share) $ 11.46   $ 11.46    
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 44,000   44,000   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)     $ 9.73    
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