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Note 2 - Investments - Net Realized and Unrealized Investment Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Gains on sales of fixed maturity securities	$ 0	$ 28
Total realized gains	0	28
Losses on sales of fixed maturity securities	(2)	(3)
Losses on sales of equity securities	(1,204)	0
Total realized losses	(1,206)	(3)
Net realized investment (losses) gains	(1,206)	25
Change in allowance for credit losses	0	(659)
Net unrealized gains (losses) on equity securities	4,229	780
Net unrealized (losses) gains on equity method investment	(21)	0
Net realized and unrealized gains on investments	$ 3,002	$ 146

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Amount of unrealized gain (loss) on investment in equity method security measured at fair value with change in fair value recognized in net income (FV-NI).

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