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Note 1 - Summary of Operations and Significant Accounting Policies 2 (Details Textual) - Extended Warranty Contracts [Member]
$ in Thousands
Dec. 31, 2024
USD ($)
Revenue, Remaining Performance Obligation, Amount $ 1,153
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 $ 855
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year