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Product Warranty Reserves
 9 Months Ended
Sep. 25, 2021
Product Warranties Disclosures [Abstract]  
Product Warranty Reserves PRODUCT WARRANTY RESERVES
The Company generally provides product warranties related to manufacturing defects and specific performance standards for its products. Product warranty reserves are included in accrued expenses in the Company's Consolidated Condensed Balance Sheets. The following is a summary of the Company's product warranty activity:
Three Months EndedNine Months Ended
September 25,
2021		September 26,
2020		September 25,
2021		September 26,
2020
Product warranty reserve at beginning of period$1,120 $910 $989 $1,002 
Warranty liabilities accrued201 165 597 608 
Warranty liabilities settled(184)(128)(449)(663)
Product warranty reserve at end of period$1,137 $947 $1,137 $947