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Basis of Presentation - Stock-Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Effect on income before income taxes $ (176) [1] $ (433) [1]
Effect on income taxes 40 62
Effect on net income $ (136) $ (371)
Restricted Stock [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Beginning Outstanding (in shares) 69,154 127,975
Released (in shares) (30,828) (55,646)
Forfeited (in shares) 0 (50)
Ending Outstanding (in shares) 38,326 72,279
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]    
Beginning Outstanding, Weighted Average Grant Date Fair Value (usd per share) $ 10.13 $ 9.06
Released, Weighted Average Grant Date Fair Value (usd per share) $ 10.07 $ 7.65
Forfeited, Weighted Average Grant Date Fair Value (usd per share) $ 0.00 $ 7.98
Ending Outstanding, Weighted Average Grant Date Fair Value (usd per share) $ 10.17 $ 10.15
Restricted Stock [Member] | Maximum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option vesting period (in years) 4 years  
Restricted Stock [Member] | Minimum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option vesting period (in years) 2 years  
Stock Options [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding at beginning of period (in shares) 1,059,417 891,293
Granted (in shares) 220,000 312,850
Exercised (in shares) (2,230) 0
Forfeited (in shares) (2,114) (1,085)
Outstanding at end of period (in shares) 1,275,073 1,203,058
Exercisable at end of period (in shares) 924,593 597,545
Weighted average fair value of options granted during the period (usd per share) $ 4.38 $ 1.82
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning of period, Weighted Average Exercise Price (usd per share) $ 6.71 $ 9.37
Granted, Weighted Average Exercise Price (usd per share) $ 7.01 $ 2.95
Exercised, Weighted Average Exercise Price (usd per share) $ 3.82 $ 0.00
Forfeited, Weighted Average Exercise Price (usd per share) $ 8.03 $ 7.64
Outstanding at end of period, Weighted Average Exercise Price (usd per share) $ 6.76 $ 7.71
Exercisable at end of period, Weighted Average Exercise Price (usd per share) $ 7.04 $ 9.19
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Risk free interest rate 2.00% 1.00%
Expected life 6 years 6 years
Dividend rate 0.00% 0.00%
Volatility 69.00% 70.00%
Stock Options [Member] | Maximum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option expiration period (in years) 10 years  
Option vesting period (in years) 4 years  
Stock Options [Member] | Minimum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option vesting period (in years) 2 years  
[1] Stock-based compensation expense is included in selling, general and administrative expenses.