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Stock Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Options, additional disclosures:      
Options, outstanding, aggregate intrinsic value $ 2,307    
2006 Plan
      
Stock based compensation:      
Number of shares authorized for grant 3,000,000    
Stock options
      
Stock based compensation:      
Proceeds from exercise of stock options 410 81  
Intrinsic value of options exercised in period 825 144  
Tax benefit received as a result of disqualified dispositions 300 52  
Options, outstanding:      
Options, outstanding, beginning of year (in shares) 374,875 400,650  
Options, outstanding, grants in period (in shares) 0 0  
Options, outstanding, exercises in period (in shares) (132,725) (25,775)  
Options, outstanding, forfeitures in period (in shares) (14,400) 0  
Options outstanding, end of year (in shares) 227,750 374,875  
Options, weighted average exercise price:      
Options, outstanding, weighted average exercise price, beginning of year (USD per share) $ 3.37 $ 3.35  
Options, grants in period, weighted average exercise price (USD per share) $ 0.00 $ 0.00  
Options, exercises in period, weighted average exercise price (USD per share) $ 3.09 $ 3.14  
Options, forfeitures in period, weighted average exercise price (USD per share) $ 2.75 $ 0.00  
Options, outstanding, weighted average exercise price, end of year (USD per share) $ 3.57 $ 3.37  
Options, additional disclosures:      
Options, exercisable (in shares) 227,750 360,475  
Options, exercisable, weighted average exercise price (USD per share) $ 3.57 $ 3.39  
Options, vested and expected to vest (in shares) 227,750 374,875  
Options, vested and expected to vest, weighted average exercise price (USD per share) $ 3.57 $ 3.37  
Stock options | 2006 Plan
      
Stock based compensation:      
Share-based Compensation Arrangement by Share-based Payment Award, Award Term Until Expiration 10 years    
Stock options | Vesting Period 1 [Member] | 2006 Plan
      
Stock based compensation:      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years    
Stock options | Vesting Period 2 [Member] | 2006 Plan
      
Stock based compensation:      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 9 years 6 months    
Stock options | Selling, general and administrative expenses
      
Stock based compensation:      
Stock based compensation expense 5    
Unvested stock options
      
Options, outstanding:      
Options, outstanding, beginning of year (in shares) 14,400 20,100  
Options, outstanding, grants in period (in shares) 0 0  
Options, outstanding, forfeitures in period (in shares) (14,400) 0  
Options outstanding, end of year (in shares) 0 14,400  
Options, weighted average exercise price:      
Options, grants in period, weighted average exercise price (USD per share) $ 0.00 $ 0.00  
Options, forfeitures in period, weighted average exercise price (USD per share) $ 2.75 $ 0.00  
Unvested options:      
Options, vested in period (in shares) 0 (5,700)  
Options, nonvested, weighted average exercise price (USD per share) $ 0.00 $ 2.75 $ 2.75
Options, vested in period, weighted average grant date fair value (USD per share) $ 0.00 $ 2.75  
Restricted stock
      
Restricted stock, nonvested:      
Restricted stock, nonvested, beginning of year (in shares) 139,730 173,556  
Restricted stock, grants in period (in shares) 63,876 59,070  
Restricted stock, vested in period (in shares) (91,573) (88,415)  
Restricted stock, forfeitures in period (in shares) (13,752) (4,481)  
Restricted stock, nonvested, end of year (in shares) 98,281 139,730  
Restricted stock, weighted average grant date fair value:      
Restricted stock, nonvested, weighted average grant date fair value, beginning of period (USD per share) $ 6.77 $ 5.21  
Restricted stock, grants in period, weighted average grant date fair value (USD per share) $ 9.32 $ 7.93  
Restricted stock, vested in period, weighted average grant date fair value (USD per share) $ 5.95 $ 4.44  
Restricted stock, forfeitures in period, weighted average grant date fair value (USD per share) $ 8.74 $ 7.68  
Restricted stock, nonvested, weighted average grant date fair value, end of period (USD per share) $ 8.91 $ 6.77  
Total unrecognized compensation expense 571 540  
Weighted average period for recognition of compensation expense 1 year 6 months    
Restricted stock | 2006 Plan
      
Stock based compensation:      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Restricted stock | Selling, general and administrative expenses
      
Stock based compensation:      
Stock based compensation expense $ 408 $ 405