Note 3 - Income Taxes (Detail) - Reconciliation of the Beginning and Ending Balance for Liabilities Associated with Unrecognized Tax Liabilities (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Beginning balance	$ 700,000	$ 700,000
Ending balance		700,000
Tax payment upon settlement	3,573,000	4,042,000
Reduction adjustment	(282,000)
Unrecognized Tax Liabilities [Member]
Tax payment upon settlement	$ (418,000)