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Consolidated Balance Sheets (Parentheticals) (USD $)
Jun. 30, 2011
Sep. 30, 2010
Marketable securities, common stock (in Dollars) $ 58,922,000 $ 43,005,000
Marketable securities, bonds (in Dollars) 7,416,000 7,077,000
Accounts receivable, allowance for doubtful accounts (in Dollars) $ 300,000 $ 300,000
Preferred stock par value (in Dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Common stock, par value (in Dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 5,000,000 5,000,000
Common stock, shares outstanding 1,380,746 1,380,746