Investments, Debt and Equity Securities (Details) - USD ($) $ in Thousands	Jul. 02, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Debt securities, svailable-for-sale, amortized cost	$ 10,357	$ 3,418
Debt securities, available-for-sale, gross unrealized gains	1	13
Debt securities, available-for-sale, gross unrealized losses	(230)	(25)
Available-for-sale debt securities:	10,128	3,406
Less than one year	5,006
Less than one year	5,007
One year through five years	3,068
One year through five years	2,989
Six years through ten years	260
Six years through ten years	228
After ten years	2,023
After ten years	1,904
Total	10,357
Total	10,128
Marketable equity securities:	24,443	11,386
United States Government and agency securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, svailable-for-sale, amortized cost	10,042	3,244
Debt securities, available-for-sale, gross unrealized gains	1	11
Debt securities, available-for-sale, gross unrealized losses	(191)	(25)
Available-for-sale debt securities:	9,852	3,230
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Debt securities, svailable-for-sale, amortized cost	315	174
Debt securities, available-for-sale, gross unrealized gains	0	2
Debt securities, available-for-sale, gross unrealized losses	(39)	0
Available-for-sale debt securities:	$ 276	$ 176

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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