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Note 6 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Net operating loss carryforwards $ 8,515 $ 11,460
Research and development 3,536 2,812
Tax credit carryforwards 2,898 2,600
Accrued expenses, reserves and other 2,909 2,419
Intangible assets 1,596 1,521
Total deferred tax assets 19,454 20,812
Valuation allowance for deferred tax assets (2,441) (2,416)
Net deferred tax assets 17,013 18,396
Intangible assets (8,095) (8,176)
Accrued expenses, reserves and other (65) (68)
Total deferred tax liabilities (8,160) (8,244)
Net deferred tax assets $ 8,853 $ 10,152