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Accrued Warranty Reserve (Tables)
12 Months Ended
Dec. 31, 2021
Guarantees and Product Warranties [Abstract]  
Schedule of estimated accrued warranty reserve
The following table summarizes the activity related to the estimated accrued warranty reserve (in thousands):
December 31,
20212020
Beginning balance$3,049 $2,592 
Provision for warranties issued1,064 1,054 
Payments(373)(496)
Warranty expirations(548)(101)
Ending balance$3,192 $3,049