Note D - Leases (Details Textual)	Jul. 18, 2023 USD ($) a	Jun. 30, 2024 USD ($)	Jan. 26, 2024 USD ($)	Jan. 22, 2024	Jun. 30, 2023 USD ($)
Operating Lease, Right-of-Use Asset		$ 43,537,000			$ 20,369,000
Operating Lease, Weighted Average Remaining Lease Term (Year)		9 years 6 months			5 years 3 months 18 days
Lessee, Operating Lease, Term of Contract (Month)				27 months
Operating Lease, Weighted Average Discount Rate, Percent		5.92%			4.12%
Operating Lease, Liability		$ 47,767,000
Extension on Manufacturing Facilities Lease [Member]
Operating Lease, Right-of-Use Asset	$ 25,900,000
Operating Lease, Liability	$ 25,900,000
Early Termination of Manno, Switzerland Apartment Lease [Member]
Operating Lease, Right-of-Use Asset			$ 300,000
Operating Lease, Liability			$ 300,000
New Apartment in Lugano, Switzerland [Member]
Lessee, Operating Lease, Term of Contract (Month)			27 months
California 1 [Member]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year)	10 years 4 months 24 days
Area of Real Estate Property (Acre) | a	162,000
Operating Lease, Base Rent Per Square Foot	$ 1.5
Tenant Improvements	2,300,000
California 1 [Member] | Reimbursements For Tenant Improvements [Member]
Tenant Improvements	$ 1,100,000
Manno, Switzerland [Member]
Operating Lease, Weighted Average Remaining Lease Term (Year)			9 years 7 months 28 days