Note 14 - Segment Information - Results of the Segments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Revenues	$ 42,559	$ 43,827	$ 145,081	$ 135,680
Cost of services	31,571	32,109	108,803	100,097
Gross profit	10,988	11,718	36,278	35,583
Selling, general and administrative	9,412	9,700	29,909	30,092
Depreciation and amortization	344	422	1,156	1,229
Operating income (loss)	1,232	1,596	3,842	3,481
Total assets	73,428	64,048	73,428	64,048	$ 73,279
Capital expenditures	816	195	1,414	747
Severance, professional fees and other charges			1,371	0
Change in contingent consideration				781
Engineering [Member]
Revenues	19,424	21,708	62,412	61,517
Cost of services	14,049	15,533	45,706	44,598
Gross profit	5,375	6,175	16,706	16,919
Selling, general and administrative	3,780	3,968	12,006	12,184
Depreciation and amortization	236	297	785	863
Operating income (loss)	1,359	1,910	3,915	3,872
Total assets	40,643	33,721	40,643	33,721
Capital expenditures	465	138	856	247
Severance, professional fees and other charges
Change in contingent consideration
Specialty Health Care [Member]
Revenues	15,106	14,335	60,599	49,212
Cost of services	11,665	10,805	46,822	37,069
Gross profit	3,441	3,530	13,777	12,143
Selling, general and administrative	3,648	3,750	12,255	11,429
Depreciation and amortization	85	86	294	246
Operating income (loss)	(292)	(306)	1,228	468
Total assets	18,874	16,178	18,874	16,178
Capital expenditures	151	44	207	459
Severance, professional fees and other charges
Change in contingent consideration
Information Technology [Member]
Revenues	8,029	7,784	22,070	24,951
Cost of services	5,857	5,771	16,275	18,430
Gross profit	2,172	2,013	5,795	6,521
Selling, general and administrative	1,984	1,982	5,648	6,479
Depreciation and amortization	23	39	77	120
Operating income (loss)	165	(8)	70	(78)
Total assets	7,110	10,212	7,110	10,212
Capital expenditures	90		108
Severance, professional fees and other charges
Change in contingent consideration
Corporate Segment [Member]
Revenues
Cost of services
Gross profit
Selling, general and administrative
Depreciation and amortization
Operating income (loss)			(1,371)	(781)
Total assets	6,801	3,937	6,801	3,937
Capital expenditures	$ 110	$ 13	243	41
Severance, professional fees and other charges			$ 1,371
Change in contingent consideration				$ 781

The amount of expense related to severance, professional fees and other charges.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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