Note 10 - Leases (Details Textual) - USD ($) $ in Millions	Jun. 17, 2024	Mar. 12, 2024	Sep. 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			24
Finance Lease, Liability, to be Paid, Year Two			92
Finance Lease, Liability, to be Paid, Year Three			88
Finance Lease, Liability, to be Paid, Year Four			85
Finance Lease, Liability, to be Paid, after Year Four			$ 767
Equipment Lease [Member]
Lessee, Finance Lease, Term of Contract (Year)			5 years
Finance Lease, Liability, to be Paid			$ 434
Finance Lease, Liability, to be Paid, Year One			24
Finance Lease, Liability, to be Paid, Year Two			95
Finance Lease, Liability, to be Paid, Year Three			90
Finance Lease, Liability, to be Paid, Year Four			85
Finance Lease, Liability, to be Paid, after Year Four			$ 140
Estimated Purchase and Installation Costs	$ 365