Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stockholders' Equity - Stock-based Compensation Expense (Details)

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Note 11 - Stockholders' Equity - Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Stock-based compensation expense $ 774 $ 687
Cost of Sales [Member]    
Stock-based compensation expense 86 29
Research and Development Expense [Member]    
Stock-based compensation expense 20 18
General and Administrative Expense [Member]    
Stock-based compensation expense $ 668 $ 640