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Income Taxes - Deferred Income Tax Assets and Liabilities (Detail) - USD ($) | Sep. 30, 2024 | Sep. 30, 2023
--- | --- | ---
Deferred Tax Assets: |  |
Accrued liabilities and reserves | $ 494,000 | $ 352,000
Allowance for credit losses | 86,000 | 123,000
Inventory | 4,700,000 | 3,901,000
Unrealized loss on investments | 0 | 554,000
Net operating losses carryforwards | 20,000 | 331,000
Gross Deferred Income Tax Assets | 5,300,000 | 5,261,000
Deferred and Other Tax Liabilities: |  |
Unrealized gain on investments | (233,000) | 0
Property and equipment | (1,643,000) | (1,918,000)
Gross Deferred and Other Income Tax Liabilities | (1,876,000) | (1,918,000)
Net Deferred and Other Income Tax Assets | $ 3,424,000 | $ 3,343,000

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