Condensed Consolidated Statements of Other Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2019	Sep. 26, 2018	Sep. 25, 2019	Sep. 26, 2018
Statement of Other Comprehensive Income [Abstract]
Net income	$ 6,402	$ 6,835	$ 21,402	$ 14,416
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	171		171
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	(29)		(29)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(38)		(38)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	104
Other Comprehensive Income (Loss), Net of Tax	$ 6,506	$ 6,835	$ 21,506	$ 14,416