Note 14 - Subsequent Events (Details Textual) $ in Thousands	Jan. 29, 2025 USD ($) a	Jan. 23, 2025 USD ($)	Jan. 20, 2025 USD ($)	Dec. 31, 2024 USD ($)
Lessee, Operating Lease, Liability, to be Paid, Total				$ 57
Subsequent Event [Member] | Detect [Member] | TRACER [Member]
Contract with Customer, Liability, Current		$ 429
Donley Facilities [Member] | Subsequent Event [Member]
Lessee, Operating Lease, Initial Monthly Rent			$ 14,186
Metric Facility [Member] | Subsequent Event [Member]
Area of Real Estate Property (Square Foot) | a	17,628
Lessee, Operating Lease, Liability, to be Paid, Total	$ 3,200