SEGMENT DATA (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 01, 2016 USD ($)	Oct. 02, 2015 USD ($)	Jul. 03, 2015 USD ($)	Apr. 03, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Jan. 01, 2016 USD ($) segment division	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment data
Net service revenues	$ 145,217	$ 131,232	$ 127,366	$ 128,399	$ 124,756	$ 125,540	$ 125,193	$ 120,340	$ 532,214	$ 495,829	$ 356,912
Operating income									32,103	24,477	14,793
Identifiable assets	464,769				345,258				464,769	345,258
Identifiable liabilities	190,869				112,066				190,869	112,066
Noncontrolling Interest - Redeemable	3,639				3,639				3,639	3,639
Capital expenditures									3,117	1,231	2,502
Depreciation and amortization									$ 4,208	4,103	2,862
Number of divisions | division									2
Number of reportable segments | segment									2
Corporate expenses.
Segment data
Operating income									$ (30,722)	(30,862)	(25,857)
Identifiable assets	20,904				9,245				20,904	9,245
Identifiable liabilities	133,349				64,197				133,349	64,197
Capital expenditures									1,418	617	1,471
Depreciation and amortization									2,637	2,582	1,634
Visiting Nurse
Segment data
Net service revenues									401,051	380,788	263,789
Operating income before corporate expenses									49,872	42,899	29,533
Identifiable assets	310,317				259,521				310,317	259,521
Identifiable liabilities	31,570				28,180				31,570	28,180
Capital expenditures									1,388	465	764
Depreciation and amortization									1,210	1,250	1,004
Personal Care
Segment data
Net service revenues									127,712	112,497	92,927
Operating income before corporate expenses									14,170	12,453	11,599
Identifiable assets	111,524				67,238				111,524	67,238
Identifiable liabilities	24,425				19,498				24,425	19,498
Capital expenditures									203	149	267
Depreciation and amortization									264	271	224
Healthcare Innovations
Segment data
Net service revenues									3,451	2,544	196
Operating income before corporate expenses									(1,217)	(13)	(482)
Identifiable assets	22,024				9,254				22,024	9,254
Identifiable liabilities	1,525				191				1,525	191
Noncontrolling Interest - Redeemable	$ 3,639				$ 3,639				3,639	3,639	$ 3,639
Capital expenditures									108
Depreciation and amortization									$ 97
Medicare program
Segment data
Segment revenues (as a percent)	71.00%								71.00%
Medicare program | Visiting Nurse
Segment data
Segment revenues (as a percent)	94.00%								94.00%
Medicaid and other government programs | Personal Care
Segment data
Segment revenues (as a percent)	83.00%								83.00%
Medicare shared savings program
Segment data
Net service revenues									$ 1,400	$ 1,600