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Note 12 - Condensed Consolidated Balance Sheet Detail - Accrued Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accrued expenses | $ 472 | $ 301
Accrued taxes | 112 | 0
Accrued compensation | 2,898 | 1,554
Warranty reserve liability | 212 | 191
Deferred revenue, current | 931 | 324
Loans payable, current | 614 | 13
Other | 130 | 986
Total accrued expenses and other current liabilities | $ 5,369 | $ 3,369

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