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Note 7 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Net operating loss carryforwards $ 11,460 $ 12,567
Research and development 2,812 1,999
Tax credit carryforwards 2,600 2,239
Accrued expenses, reserves and other 2,419 1,996
Intangible assets 1,521 1,412
Total deferred tax assets 20,812 20,213
Valuation allowance for deferred tax assets (2,416) (2,697)
Net deferred tax assets 18,396 17,516
Intangible assets (8,176) (8,219)
Accrued expenses, reserves and other (68) (79)
Total deferred tax liabilities (8,244) (8,298)
Net deferred tax assets $ 10,152 $ 9,218