Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2011	Sep. 30, 2011
Current assets:
Accounts receivable, allowance	$ 300,000	$ 300,000
Shareholders' equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	10,431,354	10,431,354
Common stock, shares outstanding	10,207,390	10,207,390
Accumulated other comprehensive loss:
Treasury stock, shares	223,964	223,964