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Note 6 - Property and Equipment - Depreciation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Selling, general and administrative expenses $ 489 $ 457
Total depreciation 1,204 1,073
Product [Member]    
Cost of sales 503 468
Service [Member]    
Cost of sales $ 212 $ 148