Discontinued Operations Discontinued operations (Details) - Discontinued Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 6,865	$ 34,698
Costs of sales	4,507	22,554
Gross profit	2,358	12,144
Selling, general and administrative expenses	3,729	8,632
Operating profit	(1,371)	3,512
Other expense	303	1,106
Gain (Loss) on Disposition of Business	242	0
Income from discontinued operations before income tax expense	(1,916)	2,406
Income tax expense	181	(49)
Net income from discontinued operations, net of tax	$ (2,097)	$ 2,455