Note 8 - Stock-Based Compensation and Preferred Stock (Detail) - Outstanding and Exercisable Stock Options (USD $)	12 Months Ended
	Sep. 30, 2012
Stock Options Outstanding	370,000
Exercisable Stock Options Outstanding	120,000
$2.450 [Member]
Exercise Price (in Dollars per share)	$ 2.450
Stock Options Outstanding	250,000
Remaining Contractual Life	9 years 6 months
$3.001 [Member]
Exercise Price (in Dollars per share)	$ 3.001
Stock Options Outstanding	70,000
Exercisable Stock Options Outstanding	70,000
Remaining Contractual Life	5 years 328 days
$3.450 [Member]
Exercise Price (in Dollars per share)	$ 3.450
Stock Options Outstanding	15,000
Exercisable Stock Options Outstanding	15,000
Remaining Contractual Life	4 years 146 days
$5.780 [Member]
Exercise Price (in Dollars per share)	$ 5.780
Stock Options Outstanding	15,000
Exercisable Stock Options Outstanding	15,000
Remaining Contractual Life	3 years 146 days
$4.620 [Member]
Exercise Price (in Dollars per share)	$ 4.620
Stock Options Outstanding	15,000
Exercisable Stock Options Outstanding	15,000
Remaining Contractual Life	2 years 146 days
$4.400 [Member]
Exercise Price (in Dollars per share)	$ 4.400
Stock Options Outstanding	3,000
Exercisable Stock Options Outstanding	3,000
Remaining Contractual Life	1 year 146 days
$1.650 [Member]
Exercise Price (in Dollars per share)	$ 1.650
Stock Options Outstanding	2,000
Exercisable Stock Options Outstanding	2,000
Remaining Contractual Life	146 days