Note 4 - Intangible Assets (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Tax Purposes [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Amortization of Intangible Assets	$ 1,223,000	$ 1,223,000	$ 3,671,000	$ 3,642,000