Retirement Benefit Plans (Details Narrative) - USD ($)	6 Months Ended	12 Months Ended
	Jul. 03, 2021	Jan. 02, 2021
Accrued amount for non discretionary safe harbor contribution	$ 332,092
Pension Benefit [Member]
Cash contributions	1,171,000	$ 3,100,000
Other Postretirement Benefit [Member]
Cash contributions	$ 8,000	$ 50,000