Note 10 - Leases (Details Textual) - USD ($) $ in Millions	Jun. 17, 2024	Mar. 12, 2024	Jun. 30, 2024
Facility Lease [Member]
Estimated Construction Costs		$ 835
Lessee, Finance Lease, Term of Contract (Year)			5 years
Finance Lease, Liability, to be Paid			$ 1,100
Finance Lease, Liability, to be Paid, Year One			35
Finance Lease, Liability, to be Paid, Year Two			103
Finance Lease, Liability, to be Paid, Year Three			99
Finance Lease, Liability, to be Paid, Year Four			96
Finance Lease, Liability, to be Paid, after Year Four			$ 780
Equipment Lease [Member]
Lessee, Finance Lease, Term of Contract (Year)			5 years
Finance Lease, Liability, to be Paid			$ 446
Finance Lease, Liability, to be Paid, Year One			25
Finance Lease, Liability, to be Paid, Year Two			100
Finance Lease, Liability, to be Paid, Year Three			95
Finance Lease, Liability, to be Paid, Year Four			89
Finance Lease, Liability, to be Paid, after Year Four			$ 137
Estimated Purchase and Installation Costs	$ 365