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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2013
Sep. 30, 2012
Statement Of Financial Position [Abstract]    
Allowances for accounts receivable $ 514 $ 574
Preferred stock, par value      
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued      
Common stock, par value      
Common stock, shares authorized 71,000,000 71,000,000
Common stock, shares issued 41,467,347 41,284,485