Note 8 - Stock Compensation Expense (Tables)

12 Months Ended

Sep. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

			Options Outstanding
Range of Exercise Prices			Number		Wtd. Avg. Remaining Life (Years)		Wtd. Avg. Exercise Price		Aggregate Intrinsic Value
$5.47	-	5.72		874,028		7	$	5.71	$	9,595,587
7.09	-	8.60		169,388		5		7.93		1,483,125
11.94	-	24.12		90,000		3		13.55		282,825
31.07				45,000		3		31.07		-
$5.47	-	31.07		1,178,416					$	11,361,537

			Options Exercisable
Range of Exercise Prices			Number		Wtd. Avg. Remaining Life (Years)		Wtd. Avg. Exercise Price		Aggregate Intrinsic Value
$5.47	-	5.72		224,028		6	$	5.69	$	2,465,087
7.09	-	8.60		101,888		3		7.97		888,400
11.94	-	24.12		90,000		3		13.55		282,825
31.07				45,000		3		31.07		-
$5.47	-	31.07		460,916					$	3,636,312

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Options			Wtd. Avg. Exercise Price		Aggregate Intrinsic Value
Exercisable at September 30, 2011		403,337		$	21.43	$	395,517
Outstanding at September 30, 2011		414,587		$	21.41	$	395,517
Granted		1,331,250			6.02
Exercised		(2,000	)		2.07		11,240
Forfeited or expired		(300,000	)		17.20
Outstanding at September 30, 2012		1,443,837		$	8.12	$	2,260,688
Exercisable at September 30, 2012		300,087		$	17.06	$	66,600
Outstanding at September 30, 2012		1,443,837		$	8.12	$	2,260,688
Granted		82,500			7.48
Exercised		(40,603	)		5.95		435,948
Forfeited or expired		(307,318	)		10.26
Outstanding at September 30, 2013		1,178,416		$	7.60	$	11,361,537
Exercisable at September 30, 2013		460,916		$	10.20	$	3,636,312

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Assumptions	Fiscal 2013			Fiscal 2012			Fiscal 2011
Expected life of option (years)	3	-	5	3	-	5		5
Risk-free interest rate	0.4%	-	0.9%	0.4%	-	0.8%		2.4	%
Volatility of stock	59%	-	75%	72%	-	79%		73	%
Forfeiture rate	0%	-	16%	0%	-	16%		0	%