Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
Accounts receivable, allowances	$ 375	$ 225
Customer relationships, amortization	923	723
Product rights, amortization	380	287
Other intangibles, amortization	$ 293	$ 236
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)	4,462,609	4,424,275
Common stock, shares outstanding (in shares)	4,449,893	4,411,559
Treasury stock, shares (in shares)	12,716	12,716
9% Preferred Stock, Series A, Voting, Cumulative, Convertible
Preferred stock, par value (usd per share)	$ 0.01
Preferred stock, shares authorized (in shares)	1,000
Preferred stock, issued (in shares)	830
Preferred stock, shares outstanding (in shares)	830
Preferred stock, dividend rate (usd per share)	9.00%
5% Preferred Stock, Series B, Voting, Cumulative, Convertible
Preferred stock liquidation preference, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, dividend rate (usd per share)	5.00%	5.00%