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Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Sep. 30, 2011
Sep. 30, 2010
Consolidated Balance Sheets [Abstract]    
Accounts receivable, allowance for doubtful accounts $ 103 $ 159
Preferred stock, no par value      
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 1 $ 1
Common stock, shares authorized 15,000,000 15,000,000
Common stock, shares issued 7,377,106 7,379,229
Common stock, outstanding 7,342,513 7,371,763
Treasury stock at cost 34,593 7,466