Note 13 - Growth Equity Fund (Details Textual) - A3 Ventures Fund 1, L.P [Member] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Feb. 28, 2024	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Variable Interest Entity, Financial or Other Support, Amount	$ 50,000			$ 50,000
Management Fee, Percent of Total Commitment	2.00%
Variable Interest Entity, Financial or Other Support, Amount Called				0
Management Fee Payable		$ 2,900		2,900		$ 2,400
Management Fee Expense		$ 200	$ 700	$ 500	$ 1,300