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Note 6 - Income Taxes - Significant Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Inventories | $ 2,154 | $ 813
R&D expenses | 832 | 0
Stock-based compensation | 600 | 416
Accrued expenses and reserves | 515 | 1,020
Unrealized loss on investments | 204 | 365
Net operating loss carry forwards and credits | 201 | 256
Foreign currency translation loss | 0 | 180
Total deferred tax asset | 4,506 | 3,050
Goodwill | (1,123) | (1,077)
Property and equipment depreciation | (683) | (1,068)
Prepaid expenses | (193) | (163)
Intangibles | (153) | (102)
Foreign currency translation gain | (36) | 0
Total deferred tax liability | (2,188) | (2,410)
Net deferred tax asset | $ 2,318 | $ 640

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