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Note I - Income Taxes | 9 Months Ended
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Mar. 31, 2024
Notes to Financial Statements |
Income Tax Disclosure [Text Block] | I. Income Taxes To determine our quarterly provision for income taxes, we use an estimated annual effective tax rate, which is based on expected annual income (or loss), statutory tax rates and tax planning opportunities available in the various jurisdictions to which we are subject. Certain significant or unusual items are separately recognized in the quarter in which they occur and can be a source of variability in the effective tax rate from quarter to quarter. We recognize interest and penalties related to uncertain tax positions, if any, as an income tax expense. Our effective tax rate for the three months ended March 31, 2024, was 19.8% and our effective tax rate for the three months ended March 31, 2023, was 14.6%. Our effective tax rate for the nine months ended March 31, 2024, was 20.1% and our effective tax rate for the nine months ended March 31, 2023, was 40.6%. Our effective tax rate for the three and nine months ended March 31, 2024, differ from the fiscal 2024 U.S. federal statutory rate of 21% primarily due to the vesting of restricted stock shares granted to employees and forecasted research and development tax credits. We record valuation allowances to reduce our deferred tax assets to an amount we believe is more likely than not to be realized. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. During the three and nine months ended March 31, 2024, there was no change to our valuation allowance for our deferred tax assets.

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