Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities

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Accrued Liabilities
 3 Months Ended
Mar. 31, 2022
Accrued Liabilities and Other Liabilities [Abstract]  
Accrued Liabilities Accrued Liabilities
 
Accrued liabilities consisted of the following:
March 31, 2022 December 31, 2021
Salaries, benefits and related expenses $ 1,520  $ 2,015 
Device warranty 226  195 
Other 73  89 
Total $ 1,819  $ 2,299 
 
The current portion of the device warranty liability is classified as a component of accrued liabilities, while the long-term portion of the device warranty liability is classified as a component of other non-current liabilities in the condensed consolidated balance sheets. A reconciliation of the changes in the device warranty liability for the three months ended March 31, 2022 is as follows:
Three Months Ended
March 31, 2022
Balance at beginning of period $ 270 
Additions for estimated future costs 76 
Incurred costs (60)
Balance at end of period $ 286 
Balance as of March 31, 2022
Current portion $ 226 
Long-term portion 60 
Total $ 286