Note 14 - Segment Information - Results of the Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018
Revenues	$ 51,595	$ 50,812
Cost of services	39,078	38,257
Gross profit	12,517	12,555
Selling, general and administrative	10,466	10,421
Depreciation and amortization	397	414
Operating income	1,654	1,720
Total assets	92,811	74,552	$ 81,510
Capital expenditures	101	289
Engineering [Member]
Revenues	19,055	21,418
Cost of services	14,357	15,724
Gross profit	4,698	5,694
Selling, general and administrative	3,816	4,122
Depreciation and amortization	285	283
Operating income	597	1,289
Total assets	48,158	36,578
Capital expenditures	62	109
Specialty Health Care [Member]
Revenues	24,171	22,634
Cost of services	18,533	17,384
Gross profit	5,638	5,250
Selling, general and administrative	4,495	4,470
Depreciation and amortization	91	105
Operating income	1,052	675
Total assets	29,348	24,884
Capital expenditures	16	40
Information Technology [Member]
Revenues	8,369	6,760
Cost of services	6,188	5,149
Gross profit	2,181	1,611
Selling, general and administrative	2,155	1,829
Depreciation and amortization	21	26
Operating income	5	(244)
Total assets	8,291	6,573
Capital expenditures	13	9
Corporate Segment [Member]
Revenues
Cost of services
Gross profit
Selling, general and administrative
Depreciation and amortization
Operating income
Total assets	7,014	6,517
Capital expenditures	$ 10	$ 131