Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities

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Accrued Liabilities
 12 Months Ended
Dec. 31, 2021
Accrued Liabilities and Other Liabilities [Abstract]  
Accrued Liabilities Accrued Liabilities
Accrued liabilities consisted of the following:
December 31,
2021 2020
Salaries, benefits and related expenses $ 2,015  $ 1,194 
Device warranty 195  188 
Other 89  47 
Total $ 2,299  $ 1,429 

Warranty

Sales of devices generally include an initial warranty for parts and services for one year in the Americas, two years in Europe, the Middle East, Africa (EMEA), and one or two years in the Asia Pacific (APAC) region. A liability for the estimated cost of product warranty is established at the time revenue is recognized based on the historical experience of known product failure rates and expected material and labor costs to provide warranty services. Specific additional warranty accruals may be made if unforeseen technical problems arise. Alternatively, if estimates are determined to be greater than the actual amounts necessary, a portion of the liability may be reversed in future periods. Warranty costs are reflected in the consolidated statements of operations and comprehensive loss as a component of costs of revenue. The current portion of the warranty liability is classified as a component of accrued liabilities, while the long-term portion of the warranty liability is classified as a component of other non-current liabilities in the consolidated balance sheets.
Warranty
2021 2020
Balance at beginning of the period $ 226  $ 350 
Additions for estimated future expense 304  219 
Incurred costs (260) (343)
Balance at end of the period $ 270  $ 226 
Current portion $ 195  $ 188 
Long-term portion 75  38 
Total $ 270  $ 226