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Consolidated Condensed Statements of Equity (Parenthetical) - shares
3 Months Ended 6 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Jul. 03, 2021
Jun. 27, 2020
Common Stock        
Restricted stock issuance (shares) 15,564 8,244 50,316 52,433