Note 9 - Stock Options and Stock Purchase Warrants (Detail) - Stock Option Activity (USD $)	12 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Outstanding beginning of period	774,576	[1]	590,078
Outstanding beginning of period (in Dollars per share)	$ 3.33	[1]	$ 3.22
Granted	5,000		190,000
Granted (in Dollars per share)	$ 1.50		$ 3.62
Exercised			(600)
Exercised (in Dollars per share)			$ 3.00
Cancelled	(9,803)		(4,902)
Cancelled (in Dollars per share)	$ 6.75		$ 5.45
Outstanding end of period (1)	769,773	[1]	774,576	[1]
Outstanding end of period (1) (in Dollars per share)	$ 3.21	[1]	$ 3.33	[1]
Outstanding end of period (1) (in Dollars)		[1],[2]		[1],[3]
Outstanding end of period (1)	3 years	[1]	4 years	[1]
Options exercisable at end of period	738,573		516,616
Options exercisable at end of period (in Dollars per share)	$ 3.21		$ 3.14
Options exercisable at end of period (in Dollars)		[2]		[3]
Options exercisable at end of period	3 years		3 years 328 days

[1] Options outstanding are exercisable at prices ranging from $1.50 to $6.75 and expire over the period 2013 to 2016.

[2] Aggregate intrinsic value is based on the closing price of the Company's common stock on September 30, 2012 of $0.51.

[3] Aggregate intrinsic value is based on the closing price of the Company's common stock on September 30, 2011 of $2.20.