Note 7 - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015
Engineering [Member] | PCI [Member]
Goodwill recorded, acquisition		$ 678
Engineering [Member] | SDS [Member]
Goodwill recorded, acquisition	$ 1,407
Engineering [Member]
Balance	3,004	2,326
Balance	$ 4,411	$ 3,004
Information Technology [Member] | PCI [Member]
Goodwill recorded, acquisition
Information Technology [Member] | SDS [Member]
Goodwill recorded, acquisition
Information Technology [Member]
Balance	$ 5,516	$ 5,516
Balance	$ 5,516	$ 5,516
Specialty Health Care [Member] | PCI [Member]
Goodwill recorded, acquisition
Specialty Health Care [Member] | SDS [Member]
Goodwill recorded, acquisition
Specialty Health Care [Member]
Balance	$ 1,703	$ 1,703
Balance	1,703	1,703
PCI [Member]
Goodwill recorded, acquisition		678
SDS [Member]
Goodwill recorded, acquisition	1,407
Balance	10,223	9,545
Balance	$ 11,630	$ 10,223