Note 10 - Stockholders' Equity (Tables)

9 Months Ended

Jun. 30, 2014

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity [Table Text Block]

							Additional						Total
	Common Stock						Paid-in			Accumulated			Stockholders'
	Shares			Amount			Capital			Deficit			Equity
Balances, September 30, 2013		32,900,705		$	329		$	87,434,834		$	(62,673,754	)	$	24,761,409
Issuance of common stock upon exercise of stock options, net		357,476			4			193,060						193,064
Share-based compensation expense								488,958						488,958
Repurchase of common stock		(256,082	)		(3	)		(476,491	)					(476,494	)
Net income											2,600,304			2,600,304
Balances, June 30, 2014		33,002,099		$	330		$	87,640,361		$	(60,073,450	)	$	27,567,241