Marketable Securities (Tables)

3 Months Ended

Mar. 28, 2020

Marketable Securities [Abstract]

Schedule Of Marketable Securities

Marketable securities, as of March 28, 2020 and December 28, 2019, consisted of:

			Gross		Gross
(dollars in thousands)	Amortized		Unrealized		Unrealized		Fair
March 28, 2020	Cost		Holding Gains		Holding Losses		Value
Available-for-sale:
Level 1
Equity securities							$	7,278
Level 2
Municipal bonds	$	52,572	$	2,272	$	(73)		54,771
	$	52,572	$	2,272	$	(73)	$	62,049

			Gross		Gross
(dollars in thousands)	Amortized		Unrealized		Unrealized		Fair
December 28, 2019	Cost		Holding Gains		Holding Losses		Value
Available-for-sale:
Level 1
Equity securities							$	9,201
Level 2
Municipal bonds	$	52,264	$	2,091	$	(18)		54,337
	$	52,264	$	2,091	$	(18)	$	63,538

Schedule Of Maturities Of Marketable Securities

Maturities of marketable securities classified as available-for-sale at March 28, 2020, were as follows:

		Amortized		Fair
(dollars in thousands)		Cost		Value
Available-for-sale:
Due within one year	$	5,437	$	5,457
Due after one year through five years		28,190		28,996
Due after five years through ten years		18,945		20,318
	$	52,572	$	54,771