Note 3 - Income Taxes - Provision for Income Taxes (Details) - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Federal	$ (420,000)	$ 132,000
State	15,000	0
Current Income Tax Expense (Benefit), Total	(405,000)	132,000
Federal	808,000	(4,685,000)
State	(218,000)	(1,707,000)
Deferred Income Tax Expense (Benefit), Total	590,000	(6,392,000)
Income Tax Expense (Benefit), Total	$ 185,000	$ (6,260,000)