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Shareholders' Equity (Deficit): (Tables)
6 Months Ended
Jul. 01, 2023
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 31, 2022

 

361,628

$

164.70

6.40

$

26,688,183

Granted

 

19,540

317.93

Exercised

 

(25,363)

117.29

Forfeited

 

(3,752)

204.26

Outstanding, July 1, 2023

 

352,053

$

176.20

6.29

$

55,016,100

Exercisable, July 1, 2023

 

217,208

$

141.65

4.83

$

41,447,400

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

Six Months Ended

    

July 1, 2023

June 25, 2022

Risk free interest rate

 

3.86

%

2.70

%

Expected life (years)

 

6

6

Expected volatility

 

28.04

%

27.47

%

Dividend yield

 

3.00

%

4.61

%

Option fair value

$

76.01

$

33.38