Shareholders' Equity (Deficit): (Tables)

3 Months Ended

Mar. 26, 2022

Shareholders' Equity (Deficit):

Schedule of stock option activity

				Weighted Average
				Remaining
	Number of	Weighted Average		Contractual Life
	Shares	Exercise Price		(years)		Intrinsic Value
Outstanding, December 25, 2021	355,621	$	146.03	6.32	$	39,320,600
Granted	1,500		212.18
Exercised	(9,156)		137.43
Outstanding, March 26, 2022	347,965	$	146.54	6.09	$	28,959,900
Exercisable, March 26, 2022	212,610	$	113.96	4.48	$	23,874,000

Schedule of weighted average assumptions used in estimation of fair value of options granted

	Three Months Ended
	March 26, 2022			March 27, 2021
Risk free interest rate		1.88	%		0.64	%
Expected life (years)		6			6
Expected volatility		26.64	%		25.05	%
Dividend yield		4.21	%		2.77	%
Option fair value	$	33.92		$	30.02