Segment Data (Details) $ in Thousands	3 Months Ended
	Apr. 01, 2016 USD ($) segment	Apr. 03, 2015 USD ($)
Segment data
Number of divisions | segment	2
Number of reportable segments | segment	2
Sales revenue
Net service revenues	$ 153,698	$ 128,399
Operating income before corporate expenses	18,712	15,298
Operating income (loss) before noncontrolling interest	6,404	7,016
Corporate expenses	7,694	6,912
Deal transition and other	2,609	406
Operating income	7,736	7,463
Interest expense, net	(1,332)	(447)
Income tax expense	(2,677)	(2,987)
Net income from continuing operations	3,727	4,029
Home Health Care division
Sales revenue
Net service revenues	149,306	128,296
Visiting Nurse
Sales revenue
Interest expense, net	358
Visiting Nurse | Reportable segments
Sales revenue
Net service revenues	109,613	99,535
Operating income before corporate expenses	14,975	12,400
Personal Care
Sales revenue
Interest expense, net	358
Personal Care | Reportable segments
Sales revenue
Net service revenues	39,693	28,761
Operating income before corporate expenses	3,737	2,898
Healthcare Innovations
Sales revenue
Interest expense, net	378
Healthcare Innovations | Reportable segments
Sales revenue
Net service revenues	4,392	103
Operating income before corporate expenses	$ (673)	$ (517)
Medicare program | Visiting Nurse
Segment data
Segment revenues (as a percent)	94.00%
Medicaid and other government programs | Personal Care
Segment data
Segment revenues (as a percent)	78.00%