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Note 14 - Segment Information (Details) - Results of the Segments (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Dec. 28, 2013
Segment Reporting Information [Line Items]      
Revenue $ 48,569 $ 41,230  
Cost of services 36,312 30,609  
Selling, general and administrative 9,844 8,693  
Depreciation and amortization 271 269  
Operating income (loss) 2,038 1,514  
Total assets 88,624 86,285 86,524
Capital expenditures 442 313  
Engineering [Member] | Fair Value, Measurements, Nonrecurring [Member]
      
Segment Reporting Information [Line Items]      
Severance and other charges   82  
Engineering [Member]
      
Segment Reporting Information [Line Items]      
Revenue 24,724 20,310  
Cost of services 19,488 15,799  
Selling, general and administrative 3,907 3,478  
Depreciation and amortization 193 155  
Operating income (loss) 1,136 796  
Total assets 46,547 41,361  
Capital expenditures 350 273  
Information Technology [Member]
      
Segment Reporting Information [Line Items]      
Revenue 15,019 13,994  
Cost of services 10,480 9,983  
Selling, general and administrative 3,654 3,461  
Depreciation and amortization 56 85  
Operating income (loss) 829 465  
Total assets 15,332 14,894  
Capital expenditures   20  
Specialty Health Care [Member]
      
Segment Reporting Information [Line Items]      
Revenue 8,826 6,926  
Cost of services 6,344 4,827  
Selling, general and administrative 2,283 1,754  
Depreciation and amortization 22 29  
Operating income (loss) 177 316  
Total assets 14,562 11,746  
Capital expenditures 83 4  
Corporate Segment [Member] | Fair Value, Measurements, Nonrecurring [Member]
      
Segment Reporting Information [Line Items]      
Severance and other charges 104 63  
Corporate Segment [Member]
      
Segment Reporting Information [Line Items]      
Operating income (loss) (104) (63)  
Total assets 12,183 18,284  
Capital expenditures 9 16  
Fair Value, Measurements, Nonrecurring [Member]
      
Segment Reporting Information [Line Items]      
Severance and other charges $ 104 $ 145