Note 1 - Summary of Operations and Significant Accounting Policies 2 (Details Textual) - Extended Warranty Contracts [Member] $ in Thousands	Dec. 31, 2025 USD ($)
Revenue, Remaining Performance Obligation, Amount	$ 855
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Amount	$ 298
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Amount	$ 557
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year