Note 16 - Subsequent Events (Details Textual) - USD ($) $ in Millions			3 Months Ended
	Jul. 22, 2024	Jul. 03, 2024	Dec. 31, 2023
Wallbox N.V. [Member]
Payments to Acquire Investments			$ 30
Investment Owned, Net Assets, Percentage			5.00%
Wallbox N.V. [Member] | Option to Purchase Additional Interest [Member]
Investment Owned, Net Assets, Percentage			5.00%
Subsequent Event [Member] | Wallbox N.V. [Member]
Payments to Acquire Investments	$ 35
Investment Owned, Net Assets, Percentage	12.00%
Subsequent Event [Member] | Wallbox N.V. [Member] | Option to Purchase Additional Interest [Member]
Investment Owned, Net Assets, Percentage	5.00%
Tranche B Term Loan Facility [Member] | Subsequent Event [Member]
Extinguishment of Debt, Amount		$ 530
Debt Instrument, Face Amount		$ 500
Debt Instrument, Quarterly Payments as A Percentage of Original Principal		0.25%