Note 2 - Revenue - Long-term Warranty and Non-cancellable Post-warranty Services 2 (Details) $ in Thousands	Jun. 30, 2026 USD ($)
Warranty remaining performance obligations	$ 60,700
Long-term Warranty and Non-cancellable Post-warranty Services [Member]
Warranty remaining performance obligations	$ 49,400
Long-term Warranty and Non-cancellable Post-warranty Services [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Warranty remaining performance obligations	$ 23,610
Long-term Warranty and Non-cancellable Post-warranty Services [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Warranty remaining performance obligations	$ 17,286
Long-term Warranty and Non-cancellable Post-warranty Services [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Warranty remaining performance obligations	$ 5,860
Long-term Warranty and Non-cancellable Post-warranty Services [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Warranty remaining performance obligations	$ 2,605