Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2016	Sep. 30, 2015
Accounts receivable, allowances	$ 225,000	$ 150,000
Customer relationships, amortization	723,000	457,000
Software development costs, amortization	533,000	429,000
Product rights, amortization	287,000	164,000
Other intangibles, amortization	$ 1,779,000	$ 1,240,000
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	4,424,275	4,376,456
Common stock, shares outstanding (in shares)	4,411,559	4,363,740
Treasury stock, shares (in shares)	12,716,000	12,716,000
5% Preferred stock, Series B, voting, cumulative, convertible, $.01 par value (liquidation preference at par), authorized 1,000,000 shares, none issued
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, dividend rate	5.00%	5.00%
Preferred stock, issued (in shares)	0	0
Other Intangible Assets [Member]
Other intangibles, amortization	$ 236,000	$ 190,000