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Guarantees (Tables)
12 Months Ended
Dec. 31, 2020
Guarantees  
Product warranty accrued liability

Year Ended

 

December 31, 

 

    

2020

    

2019

 

Beginning accrued product warranty

$

387

$

236

Accruals for warranties issued

 

510

 

522

Adjustments related to pre-existing warranties including expirations and changes in estimates

 

186

 

227

Cost of warranty repair

 

(474)

 

(598)

Ending accrued product warranty

$

609

$

387