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Note D - Income Taxes - Income Tax Expense (Benefit) Components (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
Current: |  |  |
Federal | $ 1,472,512 | $ 1,627,125 | $ 428,638
State | 120,034 | 78,552 | 106,623
Current income tax expense | 1,592,546 | 1,705,677 | 535,261
Deferred: |  |  |
Federal | (463,798) | 8,680 | 2,434,294
State | 124,657 | 23,617 | (93,523)
Deferred income tax expense | (339,141) | 32,297 | 2,340,771
Income tax expense | $ 1,253,405 | $ 1,737,974 | $ 2,876,032

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