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OPERATING SEGMENT AND GEOGRAPHIC INFORMATION (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
operating_segments
Sep. 30, 2012
Dec. 31, 2012
Segment Reporting Information [Line Items]          
Number of operating segments (in operating segments)     2    
Net sales $ 6,646 $ 7,889 $ 21,326 $ 24,188  
Gross profit 2,851 3,800 9,942 11,466  
Net income (loss) before taxes (5,560) (2,640) (11,953) (5,926)  
Income tax expense (benefit) (8) 114 52 88  
Net loss (5,552) (2,754) (12,005) (6,014) (8,327)
Depreciation/Amortization 671 495 2,102 1,570  
Interest expense, net (155) (207) (459) (713)  
Total Assets 33,180 42,887 33,180 42,887 38,791
Laboratory services
          
Segment Reporting Information [Line Items]          
Net sales 4,112 4,718 12,551 14,527  
Gross profit 1,776 2,347 5,822 7,111  
Net income (loss) before taxes (4,375) (1,907) (9,641) (4,619)  
Income tax expense (benefit) 0 0 0 0  
Net loss (4,375) (1,907) (9,641) (4,619)  
Depreciation/Amortization 606 442 1,815 1,357  
Interest expense, net (96) (201) (314) (676)  
Total Assets 23,648 30,553 23,648 30,553  
Diagnostic tools
          
Segment Reporting Information [Line Items]          
Net sales 2,534 3,171 8,775 9,661  
Gross profit 1,075 1,453 4,120 4,355  
Net income (loss) before taxes (1,185) (733) (2,312) (1,307)  
Income tax expense (benefit) (8) 114 52 88  
Net loss (1,177) (847) (2,364) (1,395)  
Depreciation/Amortization 65 53 287 213  
Interest expense, net (59) (6) (145) (37)  
Total Assets 9,532 12,334 9,532 12,334  
United states
          
Segment Reporting Information [Line Items]          
Net sales 5,095 5,442 16,241 17,013  
Italy
          
Segment Reporting Information [Line Items]          
Net sales 398 571 1,225 2,277  
All Other Countries [Member]
          
Segment Reporting Information [Line Items]          
Net sales $ 1,153 $ 1,876 $ 3,860 $ 4,898  
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%