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Note 3 - Income Taxes	3 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	3. Income Taxes Resources' effective tax rate is lower than the combined statutory state and federal corporate tax rate due to the flowback of excess deferred income taxes and the amortization of tax credits from the regulated operations of Roanoke Gas in addition to the tax benefits from the exercise of stock options and vesting of restricted stock. The Company's effective tax rate was 23.2% for the three months ended December 31, 2021 compared to 24.4% for the corresponding period in fiscal 2021.  The decline in the effective tax rate was due to additional tax deductions from the exercise of stock options and the amortization of R&D tax credits deferred as a regulatory liability.

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The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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