Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Sep. 30, 2012
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 26,000	$ 26,000
Inventories, obsolete inventory reserve	$ 400,664	$ 408,340
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares, issued	4,324,140	4,324,140
Common stock, shares, outstanding	2,585,086	2,585,321
Treasury stock, shares	1,739,054	1,738,819