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Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Beginning Balance at Sep. 30, 2013 $ 221,812 $ 24 $ 221,729 $ 15,869 $ (15,810)
Beginning Balance, Shares at Sep. 30, 2013   24,336,495      
Net income 6,155     6,155  
Shares issued pursuant to employee stock purchase plan 574   574    
Shares issued pursuant to employee stock purchase plan, Shares   55,333      
Shares issued upon vesting of equity awards, net of tax withholding               
Shares issued upon vesting of equity awards, net of tax withholding, Shares   8,660      
Shares issued upon exercise of stock options 3,097 1 3,096    
Shares issued upon exercise of stock options, Shares 426,076 426,076      
Stock-based compensation 2,141   2,141    
Stock-based compensation, Shares   7,984      
Ending Balance at Jun. 30, 2014 $ 233,779 $ 25 $ 227,540 $ 22,024 $ (15,810)
Ending Balance, Shares at Jun. 30, 2014   24,834,548