Quarterly report pursuant to Section 13 or 15(d)

Goodwill Intangible assets (Details)

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Goodwill Intangible assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]          
Amortization of Intangible Assets $ 986 $ 0 $ 1,839 $ 0  
Finite-Lived Intangible Assets, Gross 47,468   47,468    
Finite-Lived Intangible Assets, Accumulated Amortization (2,629)   (2,629)    
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 3,803   3,803    
Finite-Lived Intangible Assets, Net 45,448   45,448   $ 47,304
Finite-Lived Intangible Assets, Amortization Expense, Year Two 6,328   6,328    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 6,097   6,097    
Finite-Lived Intangible Assets, Amortization Expense, Year Four 5,949   5,949    
Finite-Lived Intangible Assets, Amortization Expense, Year Five 5,703   $ 5,703    
Diagnostics test - Thyroid [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     9 years    
Finite-Lived Intangible Assets, Gross 8,519   $ 8,519    
Diagnostics test - Pancreas [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     7 years    
Finite-Lived Intangible Assets, Gross 2,882   $ 2,882    
BioBank [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     4 years    
Finite-Lived Intangible Assets, Gross 1,575   $ 1,575    
Diagnostic Test - Pancreas RedPath [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     7 years    
Finite-Lived Intangible Assets, Gross 16,141   $ 16,141    
Diagnostic Test - Barrett's RedPath [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     9 years    
Finite-Lived Intangible Assets, Gross 18,351   $ 18,351    
CLIA Diagnostic Lab [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     2 years 3 months    
Finite-Lived Intangible Assets, Gross $ 609   $ 609