XML 53 R31.htm IDEA: XBRL DOCUMENT v3.20.1
Accrued Warranty (Tables)
 12 Months Ended
Dec. 31, 2019
Product Warranties Disclosures [Abstract]  
Schedule Product Warranty Accrual Included in Accrued Expenses

Activity in the product warranty accrual is included in accrued expenses above and consists of the following (in thousands):

 

 

 

Year ended December 31,

 

 

 

2019

 

 

2018

 

Balanced at beginning of period

 

$

112

 

 

$

87

 

Increase in warranty accrual

 

 

889

 

 

 

287

 

Change in liability for pre-existing warranties

 

 

(28

)

 

 

—

 

Claims satisfied

 

 

(635

)

 

 

(262

)

Accrued warranty

 

$

338

 

 

$

112