Note 13 - Stockholders' Equity (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Share Buyback Program [Member]	Nov. 30, 2013 Share Buyback Program [Member]	Jul. 31, 2013 Share Buyback Program [Member]
Note 13 - Stockholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	612,941	526,206
Proceeds from Stock Options Exercised (in Dollars)	$ 544,893	$ 340,450
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.00001	$ 0.00001
Preferred Stock, Shares Outstanding	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	Feb. 04, 2016
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	1,627,945	1,627,945
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)	$ 2.67	$ 2.67
Stock Repurchase Program, Authorized Amount (in Dollars)				1,000,000	3,000,000
Stock Repurchased and Retired During Period, Shares			277,157
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)			$ 1.86
Stock Repurchased During Period, Value (in Dollars)			$ 516,352