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Note 7 - Income Taxes - Deferred Income Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred tax assets: |  |
Net operating losses | $ 411 | $ 490
Stock-based compensation | 0 | 170
Operating lease liabilities | 451 | 396
Other | 70 | 51
Total deferred tax assets | 932 | 1,107
Valuation allowance | (235) | (303)
Net deferred tax assets | 697 | 804
Deferred tax liabilities: |  |
Operating lease assets | 419 | 376
Foreign deferreds | (141) | (153)
Prepaids | 83 | 113
Other | (0) | 6
Total deferred tax liabilities | (643) | (648)
Net deferred tax assets | $ 54 | $ 156

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