Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 24, 2020	Jun. 26, 2019	Jun. 24, 2020	Jun. 26, 2019
Statement of Other Comprehensive Income [Abstract]
Net income	$ 5,499	$ 14,087	$ 9,099	$ 15,000
Unrealized net losses arising during the period from interest rate swap	296		1,755
Reclassifications of losses into net income	(81)		(42)
Income benefit	(58)		(461)
Other comprehensive loss, net of taxes	157		1,252
Comprehensive income	$ 5,342	$ 14,087	$ 7,847	$ 15,000