Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) - USD ($)
Sep. 25, 2021
Dec. 26, 2020
Statement of Financial Position [Abstract]    
Accounts receivable, Allowance for doubtful accounts current $ 4,366,000 $ 4,485,000
Common stock, Shares outstanding 138,384,250