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Note 7 - Accounts Payable and Accrued Expenses - Summary of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Patent and legal costs $ 61 $ 135
Accrued compensation 786 1,100
Warranty costs 109 125
Taxes and other 172 103
Total $ 1,128 $ 1,463