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Product Warranties (Tables)
12 Months Ended
Dec. 31, 2020
Product Warranties  
Summary of warranty liability activity

A summary of the Company’s warranty liability activity, which is included in accrued liabilities in the accompanying balance sheets as of December 31, 2020 and 2019, is as follows:

 

 

 

 

 

 

 

 

 

    

2020

    

2019

Warranty liability, beginning of year

 

$

257,000

 

$

257,000

Accruals

 

 

10,000

 

 

 —

Payments

 

 

 —

 

 

(1,000)

Adjustments and other

 

 

(171,000)

 

 

1,000

Warranty liability, end of year

 

$

96,000

 

$

257,000