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Note 7 - Goodwill - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Jan. 02, 2016
Balance | $ 11,630 | $ 10,223
Balance | 12,325 | 11,630
Substation Design Services, LLC [Member] |  |
Goodwill recorded, acquisition |  | 1,407
Allied Health Professionals, LLC [Member] |  |
Goodwill recorded, acquisition | 695 |
Balance | 695 |
Engineering [Member] |  |
Balance | 4,411 | 3,004
Balance | 4,411 | 4,411
Engineering [Member] | Substation Design Services, LLC [Member] |  |
Goodwill recorded, acquisition |  | 1,407
Engineering [Member] | Allied Health Professionals, LLC [Member] |  |
Goodwill recorded, acquisition |  |
Information Technology [Member] |  |
Balance | 5,516 | 5,516
Balance | 5,516 | 5,516
Information Technology [Member] | Substation Design Services, LLC [Member] |  |
Goodwill recorded, acquisition |  |
Information Technology [Member] | Allied Health Professionals, LLC [Member] |  |
Goodwill recorded, acquisition |  |
Specialty Health Care [Member] |  |
Balance | 1,703 | 1,703
Balance | 2,398 | 1,703
Specialty Health Care [Member] | Substation Design Services, LLC [Member] |  |
Goodwill recorded, acquisition |  |
Specialty Health Care [Member] | Allied Health Professionals, LLC [Member] |  |
Goodwill recorded, acquisition | $ 695 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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