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OPERATING SEGMENT AND GEOGRAPHIC INFORMATION (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
operating_segments
Jun. 30, 2013
Dec. 31, 2013
Segment Reporting Information [Line Items]          
Number of operating segments (in operating segments)     2    
Net Sales $ 6,764 $ 7,306 $ 13,015 $ 14,680  
Gross Profit 2,393 2,973 4,887 6,228  
Net Loss before Taxes (3,901) (2,873) (7,572) (6,394)  
Income Tax Expense (Benefit) (8) (6) 497 60  
Net Loss (3,893) (2,867) (8,069) (6,454) (15,987)
Depreciation/Amortization 488 687 981 1,431  
Interest expense, net 146 151 328 304  
Total Assets 31,091 39,363 31,091 39,363 30,278
Laboratory services
          
Segment Reporting Information [Line Items]          
Net Sales 3,843 4,012 7,531 8,439  
Gross Profit 1,490 1,853 3,122 4,046  
Net Loss before Taxes (3,277) (2,181) (6,261) (5,267)  
Income Tax Expense (Benefit) 40 0 549 0  
Net Loss (3,317) (2,181) (6,810) (5,267)  
Depreciation/Amortization 438 646 878 1,209  
Interest expense, net 83 84 190 219  
Total Assets 23,370 27,834 23,370 27,834  
Genetic Assays and Platforms [Member]
          
Segment Reporting Information [Line Items]          
Net Sales 2,921 3,294 5,484 6,241  
Gross Profit 903 1,120 1,765 2,182  
Net Loss before Taxes (624) (692) (1,311) (1,127)  
Income Tax Expense (Benefit) (48) (6) (52) 60  
Net Loss (576) (686) (1,259) (1,187)  
Depreciation/Amortization 50 41 103 222  
Interest expense, net 63 67 138 85  
Total Assets 7,721 11,529 7,721 11,529  
United states
          
Segment Reporting Information [Line Items]          
Net Sales 4,870 5,797 9,633 11,146  
Italy
          
Segment Reporting Information [Line Items]          
Net Sales 337 372 722 827  
All Other Countries [Member]
          
Segment Reporting Information [Line Items]          
Net Sales $ 1,557 $ 1,137 $ 2,660 $ 2,707  
Maximum | All Other Countries [Member]
          
Segment Reporting Information [Line Items]          
Percent of revenue from countries not separately disclosed     5.00%    
Minimum | United states
          
Segment Reporting Information [Line Items]          
Long-lived asset percentage held in a specific location 99.00%   99.00%