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Note 11 - Commitments and Contingencies (Details Textual) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Standard and Extended Product Warranty Accrual $ 831,000 $ 805,000
Inventories [Member]    
Purchase Obligation 41,284,000  
Purchase Obligation, to be Paid, Year One 28,389,000  
Purchase Obligation, to be Paid, Year Two 12,469,000  
DOL [Member]    
Estimated Litigation Liability $ 575,000