Note 2 - Net Income Per Share (Detail) - Net Income Per Common Share (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (in Dollars)	$ 1,741,960	$ 1,277,830	$ 2,873,486	$ 2,311,475
Weighted average shares outstanding	12,388,162	12,097,670	12,339,673	12,054,868
Dilutive impact of common stock equivalent outstanding	282,238	731,827	389,155	683,926
Weighted average shares outstanding— diluted	12,670,400	12,829,497	12,728,828	12,738,794
Net income per common share — diluted (in Dollars per share)	$ 0.14	$ 0.10	$ 0.23	$ 0.18
Weighted average shares outstanding— basic	12,388,162	12,097,670	12,339,673	12,054,868
Net income per common share (in Dollars per share)	$ 0.14	$ 0.11	$ 0.23	$ 0.19