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Note 15 - Revenue (Details Textual)
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Expected Period of Benefit for Expense of Sales Commissions (Year)     1 year  
Contract with Customer, Asset, before Allowance for Credit Loss $ 0   $ 0  
Contract with Customer, Liability, Revenue Recognized $ 12,000 $ 9,000 $ 1,600,000 $ 163,000
Number of Operating Segments     1