Note 13 - Growth Equity Fund (Details Textual) - A3 Ventures Fund 1, L.P [Member] - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Feb. 28, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 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 Expense		$ 300	$ 600	800	$ 1,900
Financing Receivable, Credit Loss, Expense (Reversal)		3,500
Increase (Decrease) in Variable Interest Entity Liability		(1,600)
Interest Receivable		500		500
Management Fee Payable		$ 1,600		$ 1,600		$ 2,400