Note 2 - Net Income Per Share (Details) - Net Income Per Common Share (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Net Income Per Common Share [Abstract]
Net income (in Dollars)	$ 1,226,305	$ 545,278	$ 3,208,631	$ 1,090,489
Weighted average common shares	12,746,904	12,503,434	12,717,842	12,489,651
Dilutive potential common shares	866,383	423,126	862,275	372,633
Weighted average dilutive common shares outstanding	13,613,287	12,926,560	13,580,117	12,862,284
Net income per common share:
Basic (in Dollars per share)	$ 0.09	$ 0.05	$ 0.25	$ 0.09
Diluted (in Dollars per share)	$ 0.09	$ 0.04	$ 0.24	$ 0.08