Note 5 - Intangible Assets (Details Textual) - USD ($)	3 Months Ended
	Dec. 31, 2015	Dec. 31, 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	$ 1,259,000	$ 1,224,000