Note 14 - Segment Information (Details) - Results of the Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013		Sep. 27, 2014	Sep. 28, 2013		Dec. 28, 2013
Segment Reporting Information [Line Items]
Revenue	$ 46,382	$ 41,320	[1]	$ 144,460	$ 124,929	[1]
Cost of services	33,221	30,636	[1]	106,087	92,362	[1]
Selling, general and administrative	9,991	8,584	[1]	29,488	26,251	[1]
Severance and other charges		15	[1]	104	453	[1]
Depreciation and amortization	337	279	[1]	885	829	[1]
Operating income	2,833	1,806	[1]	7,896	5,034	[1]
Total assets	94,340	89,956	[1]	94,340	89,956	[1]	86,524
Capital expenditures	603	226	[1]	1,952	1,071	[1]
Engineering [Member]
Segment Reporting Information [Line Items]
Revenue	24,835	22,000	[1]	75,615	63,263	[1]
Cost of services	18,239	16,660	[1]	57,695	48,562	[1]
Selling, general and administrative	4,096	3,401	[1]	11,881	10,608	[1]
Severance and other charges			[1]		342	[1]
Depreciation and amortization	248	187	[1]	643	509	[1]
Operating income	2,252	1,752	[1]	5,396	3,237	[1]
Total assets	49,169	45,525	[1]	49,169	45,525	[1]
Capital expenditures	587	226	[1]	1,120	859	[1]
Information Technology [Member]
Segment Reporting Information [Line Items]
Revenue	14,405	13,156	[1]	44,076	41,378	[1]
Cost of services	9,941	9,649	[1]	30,734	29,706	[1]
Selling, general and administrative	3,560	3,288	[1]	10,735	10,256	[1]
Severance and other charges			[1]			[1]
Depreciation and amortization	61	66	[1]	165	236	[1]
Operating income	843	153	[1]	2,442	1,183	[1]
Total assets	15,253	14,106	[1]	15,253	14,106	[1]
Capital expenditures			[1]		57	[1]
Specialty Health Care [Member]
Segment Reporting Information [Line Items]
Revenue	7,142	6,164	[1]	24,769	20,288	[1]
Cost of services	5,041	4,327	[1]	17,658	14,094	[1]
Selling, general and administrative	2,335	1,895	[1]	6,872	5,387	[1]
Severance and other charges			[1]			[1]
Depreciation and amortization	28	26	[1]	77	84	[1]
Operating income	(262)	(84)	[1]	162	725	[1]
Total assets	16,529	12,507	[1]	16,529	12,507	[1]
Capital expenditures	9		[1]	92	4	[1]
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Revenue			[1]			[1]
Cost of services			[1]			[1]
Selling, general and administrative			[1]			[1]
Severance and other charges		15	[1]	104	111	[1]
Depreciation and amortization			[1]			[1]
Operating income		(15)	[1]	(104)	(111)	[1]
Total assets	13,389	17,818	[1]	13,389	17,818	[1]
Capital expenditures	$ 7		[1]	$ 740	$ 151	[1]

[1] Certain prior year amounts have been reclassified to conform to fiscal 2014 presentation. These changes had no impact on previously reported results of operations or shareholder's equity.