Note 4 - Marketable Securities - Schedule of Contractual Maturity (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Due in one year or less, amortized cost	$ 260,690
Due in one year or less, fair value	259,296
Due after one year through five years, amortized cost	144,955
Due after one year through five years, fair value	144,578
Due after five years through ten years, amortized cost	0
Due after five years through ten years, fair value	0
Due after ten years, amortized cost	3,508
Due after ten years, fair value	3,508
Total marketable securities, amortized cost	409,153
Total marketable securities, fair value	$ 407,382

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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