Note 14 - Segment Information - Results of the Segments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Dec. 29, 2018
Revenues	$ 40,250	$ 42,559	$ 142,550	$ 145,081
Cost of services	29,635	31,571	106,615	108,803
Gross profit	10,615	10,988	35,935	36,278
Selling, general and administrative	9,498	9,412	30,165	29,909
Depreciation and amortization	386	344	1,191	1,156
Operating income (loss)	731	1,232	4,579	3,842
Total assets	91,740	73,428	91,740	73,428	$ 81,510
Capital expenditures	63	816	301	1,414
Severance, professional fees and other charges				1,371
Engineering [Member]
Revenues	15,140	19,424	52,778	62,412
Cost of services	10,984	14,049	38,666	45,706
Gross profit	4,156	5,375	14,112	16,706
Selling, general and administrative	2,996	3,780	10,486	12,006
Depreciation and amortization	293	236	879	785
Operating income (loss)	867	1,359	2,747	3,915
Total assets	53,639	40,643	53,639	40,643
Capital expenditures	(11)	465	76	856
Severance, professional fees and other charges
Specialty Health Care [Member]
Revenues	16,765	15,106	64,305	60,599
Cost of services	12,795	11,665	49,395	46,822
Gross profit	3,970	3,441	14,910	13,777
Selling, general and administrative	4,205	3,648	12,990	12,255
Depreciation and amortization	74	85	250	294
Operating income (loss)	(309)	(292)	1,670	1,228
Total assets	25,822	18,874	25,822	18,874
Capital expenditures	2	151	107	207
Severance, professional fees and other charges
Information Technology [Member]
Revenues	8,345	8,029	25,467	22,070
Cost of services	5,856	5,857	18,554	16,275
Gross profit	2,489	2,172	6,913	5,795
Selling, general and administrative	2,297	1,984	6,689	5,648
Depreciation and amortization	19	23	62	77
Operating income (loss)	173	165	162	70
Total assets	7,773	7,110	7,773	7,110
Capital expenditures	19	90	36	108
Severance, professional fees and other charges
Corporate Segment [Member]
Revenues
Cost of services
Gross profit
Selling, general and administrative
Depreciation and amortization
Operating income (loss)				(1,371)
Total assets	4,506	6,801	4,506	6,801
Capital expenditures	$ 53	$ 110	$ 82	243
Severance, professional fees and other charges				$ 1,371

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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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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