Employee Benefit Plans (Post Retirement Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020
Defined Benefit Plan, Roll Forwards [Abstract]
Benefit obligation at beginning of year	$ 390	$ 360
Service cost	8	8
Interest cost	16	17
Actuarial (gain) loss	(17)	6
Benefits paid	(1)	(1)
Benefit obligation at end of year	396	390
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Employer contributions	1	1
Fair value of plan assets at end of year	0	0
Unfunded amount	$ (396)	$ (390)