Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets (Other Intangible Assets) (Details)

v2.4.1.9
Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]    
Goodwill $ 15,545us-gaap_Goodwill $ 0us-gaap_Goodwill
Amortization of Intangible Assets 773us-gaap_AmortizationOfIntangibleAssets 0us-gaap_AmortizationOfIntangibleAssets
Rent payable 209us-gaap_DeferredRentCreditNoncurrent 557us-gaap_DeferredRentCreditNoncurrent
Finite-lived intangible assets, gross 47,468us-gaap_FiniteLivedIntangibleAssetsGross  
Finite-Lived Intangible Assets, Accumulated Amortization 686us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization  
Finite-Lived Intangible Assets, Net 46,782us-gaap_FiniteLivedIntangibleAssetsNet  
Diagnostic Test - Thyroid    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible asset, useful life 9 years  
Finite-lived intangible assets, gross 8,519us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestThyroidMember
 
Finite-Lived Intangible Assets, Accumulated Amortization 0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestThyroidMember
 
Finite-Lived Intangible Assets, Net 8,519us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestThyroidMember
 
Diagnostic Test - Pancreas    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible asset, useful life 7 years  
Finite-lived intangible assets, gross 2,882us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestPancreasMember
 
Finite-Lived Intangible Assets, Accumulated Amortization 154us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestPancreasMember
 
Finite-Lived Intangible Assets, Net 2,728us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestPancreasMember
 
Biobank    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible asset, useful life 4 years  
Finite-lived intangible assets, gross 1,575us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_BioBankMember
 
Finite-Lived Intangible Assets, Accumulated Amortization 147us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_BioBankMember
 
Finite-Lived Intangible Assets, Net 1,428us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_BioBankMember
 
Diagnostic Test - Pancreas RedPath [Member] [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible asset, useful life 7 years  
Finite-lived intangible assets, gross 16,141us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestPancreasRedPathMemberMember
 
Finite-Lived Intangible Assets, Accumulated Amortization 385us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestPancreasRedPathMemberMember
 
Finite-Lived Intangible Assets, Net 15,756us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestPancreasRedPathMemberMember
 
Diagnostic Test - Barrett's RedPath    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible asset, useful life 9 years  
Finite-lived intangible assets, gross 18,351us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestBarrettsRedPathMember
 
Finite-Lived Intangible Assets, Accumulated Amortization 0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestBarrettsRedPathMember
 
Finite-Lived Intangible Assets, Net 18,351us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_DiagnosticTestBarrettsRedPathMember
 
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 609us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_CLIADiagnosticLabMember
 
Finite-Lived Intangible Assets, Accumulated Amortization 87us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_CLIADiagnosticLabMember
 
Finite-Lived Intangible Assets, Net $ 522us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= pdii_CLIADiagnosticLabMember