Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Components - Accrued liabilities (Details)

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Balance Sheet Components - Accrued liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Jan. 01, 2022
Dec. 31, 2021
Balance Sheet Components      
Accrued vacation $ 420   $ 385
Accrued rebate 346   356
Customer advances 265    
Accrued compensation 238   231
Operating lease liabilities 146 $ 148  
Accrued audit fees 79   191
Accrued other 233   253
Total accrued liabilities $ 1,727   $ 1,416 [1]
[1] The condensed consolidated balance sheet as of December 31, 2021 was derived from the audited consolidated balance sheet as of that date.