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Basis of Presentation Stock-Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Effect on income before income taxes (1) $ (438) [1] $ (356) [1] $ (1,341) [1] $ (1,099) [1]
Effect on income taxes 63 105 194 383
Effect on net income $ (375) $ (251) $ (1,147) $ (716)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]        
Risk free interest rate     1.12% 1.69%
Expected life (in years)     6 years 6 years
Dividend rate     0.00% 0.00%
Volatility     70.00% 70.00%
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)     120,970 127,751
Awarded (in shares)     60,600 35,517
Released (in shares)     (47,014) (37,376)
Forfeited (in shares)     (2,000) 0
Ending Outstanding (in shares) 132,556 125,892 132,556 125,892
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)     $ 9.42 $ 6.36
Awarded, Weighted Average Grant Date Fair Value (usd per share)     $ 7.98 $ 17.28
Released, Weighted Average Grant Date Fair Value (usd per share)     $ 8.53 $ 6.27
Forfeited, Weighted Average Grant Date Fair Value (usd per share)     $ 7.22 $ 0.00
Ending Outstanding, Weighted Average Grant Date Fair Value (usd per share) $ 9.11 $ 9.47 $ 9.11 $ 9.47
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)     611,384 691,403
Granted (in shares)     285,400 102,000
Exercised (in shares)     (600) (25,608)
Forfeited (in shares)     (4,078) (6,525)
Outstanding at end of period (in shares) 892,106 761,270 892,106 761,270
Exercisable at end of period (in shares) 377,756 448,081 377,756 448,081
Weighted average fair value of options granted during the period (usd per share)     $ 4.95 $ 3.97
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)     $ 10.02 $ 7.03
Granted, Weighted Average Exercise Price (usd per share)     $ 7.98 $ 6.44
Exercised, Weighted Average Exercise Price (usd per share)     $ 5.33 $ 6.04
Forfeited, Weighted Average Exercise Price (usd per share)     $ 9.46 $ 5.55
Outstanding at end of period, Weighted Average Exercise Price (usd per share) $ 9.37 $ 6.99 $ 9.37 $ 6.99
Exercisable at end of period, Weighted Average Exercise Price (usd per share) $ 9.16 $ 7.23 $ 9.16 $ 7.23
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)     5 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.