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Note 14 - Segment Information - Results of the Segments (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Dec. 31, 2016
Revenues $ 43,827 $ 39,695 $ 135,680 $ 132,250  
Cost of services 32,109 29,551 100,097 97,326  
Gross profit 11,718 10,144 35,583 34,924  
Selling, general and administrative 9,700 9,334 30,092 29,976  
Depreciation and amortization 422 388 1,229 1,177  
Operating income (loss) 1,596 422 3,481 3,771  
Total assets 64,048 65,892 64,048 65,892 $ 69,831
Capital expenditures 195 75 747 732  
Change in contingent consideration 781  
Engineering [Member]          
Revenues 21,708 17,591 61,517 55,019  
Cost of services 15,533 13,292 44,598 40,859  
Gross profit 6,175 4,299 16,919 14,160  
Selling, general and administrative 3,968 3,606 12,184 11,355  
Depreciation and amortization 297 281 863 840  
Operating income (loss) 1,910 412 3,872 1,965  
Total assets 33,721 34,019 33,721 34,019  
Capital expenditures 138 61 247 516  
Change in contingent consideration        
Specialty Health Care [Member]          
Revenues 14,335 12,035 49,212 43,465  
Cost of services 10,805 8,924 37,069 32,012  
Gross profit 3,530 3,111 12,143 11,453  
Selling, general and administrative 3,750 3,151 11,429 10,202  
Depreciation and amortization 86 59 246 188  
Operating income (loss) (306) (99) 468 1,063  
Total assets 16,178 15,770 16,178 15,770  
Capital expenditures 44 459 128  
Change in contingent consideration        
Information Technology [Member]          
Revenues 7,784 10,069 24,951 33,766  
Cost of services 5,771 7,335 18,430 24,455  
Gross profit 2,013 2,734 6,521 9,311  
Selling, general and administrative 1,982 2,577 6,479 8,419  
Depreciation and amortization 39 48 120 149  
Operating income (loss) (8) 109 (78) 743  
Total assets 10,212 12,336 10,212 12,336  
Capital expenditures 10 58  
Change in contingent consideration        
Corporate Segment [Member]          
Revenues  
Cost of services  
Gross profit  
Selling, general and administrative  
Depreciation and amortization  
Operating income (loss) (781)  
Total assets 3,937 3,767 3,937 3,767  
Capital expenditures $ 13 $ 4 41 $ 30  
Change in contingent consideration     $ 781