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Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Accrued risk reserves | $ 2,012 | $ 1,898
Accrued expenses | 7,695 | 7,346
Tax basis in excess of book basis of fixed assets | 0 | 5,653
Stock based compensation | 1,181 | 931
Deferred revenue | 3,154 | 4,987
Operating lease liabilities | 19,896 | 23,658
Other | 847 | 567
Total gross deferred tax assets | 34,785 | 45,050
Less: valuation allowance | (517) | (594)
Deferred tax assets less valuation allowance | 34,268 | 44,446
Unrealized gains on marketable securities | (28,581) | (19,971)
Deferred gain on sale of assets, net | (2,055) | (2,055)
Book basis in excess of tax basis of intangible assets | (5,655) | (3,387)
Book basis in excess of tax basis of securities | (4,042) | (3,393)
Book basis in excess of tax basis of fixed assets | (6,579) | 0
Long–term investments | (2,652) | (8,753)
Operating lease assets | (20,254) | (24,087)
Total deferred tax liabilities | (69,818) | (61,646)
Net deferred tax liability | $ (35,550) | $ (17,200)

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