Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 28, 2019

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income

		Unrealized Gains
		on Available-for-Sale
(dollars in thousands)		Marketable Securities
Accumulated other comprehensive income balance as of December 30, 2017	$	5,880
Amount reclassified to retained earnings for equity unrealized gain (adoption of ASU 2016-01)		(5,481)
Other comprehensive loss before reclassifications		(177)
Amounts reclassified from accumulated other comprehensive income		40
Net current period other comprehensive Income		(5,618)
Accumulated other comprehensive income balance as of December 29, 2018	$	262
Other comprehensive income before reclassifications		1,255
Amounts reclassified from accumulated other comprehensive income		(37)
Net current period change in other comprehensive income		1,218
Accumulated other comprehensive income balance as of December 28, 2019	$	1,480

Schedule Of Reclassifications out of Accumulated Other Comprehensive Income

		Amounts Reclassified from
		Accumulated Other Comprehensive Income to the
		Consolidated Statements of Income
(dollars in thousands)	Location	2019		2018		2017
Unrealized gains (losses) on available-for-sale marketable securities
	Investment income and interest expense	$	(51)	$	(54)	$	(40)
	Provision for income taxes		14		14		11
Total amount reclassified, net of tax		$	(37)	$	(40)	$	(29)