Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Mar. 31, 2016	Sep. 30, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 4,000	$ 4,000
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	2,581,007	2,581,466
Treasury stock, shares	1,743,133	1,742,674