CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance at Sep. 30, 2010	$ 5,256	$ 6,241	$ 15,025,941	$ 150,162	$ 5,791,368	$ (986,342)	$ 19,992,626
Balance (in shares) at Sep. 30, 2010	5,256,000	12,482,356				810,160
Issuance of shares of common stock under employee stock purchase plan	0	15	95,275	0	0	0	95,290
Issuance of shares of common stock under employee stock purchase plan (in shares)	0	28,758				0
Stock-based compensation costs	0	248	603,194	0	0	0	603,442
Stock-based compensation costs (in shares)	0	497,608				0
Exercise of options by non-director to purchase common stock	0	8	(8)	0	0	0	0
Exercise of options by non-director to purchase common stock (in shares)	0	15,973				0
Exercise of options by director to purchase common stock	0	99	(88)	0	0	0	11
Exercise of options by director to purchase common stock (in shares)	0	198,650				0
Issuance of shares of common stock for conversion of Series C preferred stock	(5,256)	1,051	4,205	0	0	0	0
Issuance of shares of common stock for conversion of Series C preferred stock (in shares)	(5,256,000)	2,102,400				0
Issuance of shares of common stock in lieu of Series C preferred stock dividends	0	34	168,236	0	0	0	168,270
Issuance of shares of common stock in lieu of Series C preferred stock dividends (in shares)	0	67,308				0
Preferred stock dividends	0	0	0	0	(116,646)	0	(116,646)
Adjustment for increase in pension liability, net of tax							0
Foreign currency translation adjustment	0	0	0	147,404	0	0	147,404
Net loss	0	0	0	0	1,351,645	0	1,351,645
Balance at Sep. 30, 2011	0	7,696	15,896,755	297,566	7,026,367	(986,342)	22,242,042
Balance (in shares) at Sep. 30, 2011	0	15,393,053				810,160
Issuance of shares of common stock under employee stock purchase plan	0	24	63,098	0	0	0	63,122
Issuance of shares of common stock under employee stock purchase plan (in shares)	0	47,440				0
Stock-based compensation costs	0	29	935,367	0	0	0	935,396
Stock-based compensation costs (in shares)	0	57,592
Exercise of options by director to purchase common stock	0	21	(21)	0	0	0	0
Exercise of options by director to purchase common stock (in shares)	0	41,205				0
Preferred stock dividends							0
Expiration of put shares	0	35	142,419	0	0	0	142,454
Expiration of put shares (in shares)	0	71,227				0
Adjustment for increase in pension liability, net of tax	0	0	0	(345,443)	0		(345,443)
Foreign currency translation adjustment	0	0	0	109,783	0	0	109,783
Net loss	0	0	0	0	(4,303,766)	0	(4,303,766)
Balance at Sep. 30, 2012	$ 0	$ 7,805	$ 17,037,618	$ 61,906	$ 2,722,601	$ (986,342)	$ 18,843,588
Balance (in shares) at Sep. 30, 2012	0	15,610,517				810,160