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Warranty Liability (Tables)
3 Months Ended
Mar. 31, 2019
Guarantees And Product Warranties [Abstract]  
Schedule of Warranty Liability Included in Accrued Expenses on Condensed Consolidated Balance Sheet

The table below sets forth the activity in the warranty liability, which is included in accrued expenses on the condensed consolidated balance sheet, for the three months ended March 31, 2019 and 2018:

 

Balance, January 1, 2019

 

$

1,103

 

Additions

 

 

442

 

Cost of warranty claims

 

 

(352

)

Balance, March 31, 2019

 

$

1,193

 

 

 

 

 

 

Balance, January 1, 2018

 

$

1,742

 

Additions

 

 

121

 

Cost of warranty claims

 

 

(372

)

Balance, March 31, 2018

 

$

1,491