Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Narrative) (Details)

v3.5.0.2
Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
1 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2016
Mar. 31, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Accounting Policies [Line Items]            
Accounts payable $ 4,894,800 $ 4,894,800   $ 4,894,800   $ 1,767,523
Fair value of notes payable 62,200,000 62,200,000   62,200,000    
Notes payable 62,200,000 62,200,000   62,200,000    
Derivative liabilities $ 63,000 63,000   $ 63,000   $ 63,000
Non-refundable upfront cash payment received     $ 2,000,000      
Deferred revenue recognition period       2 years    
Remaining deferred revenue recognized   417,000        
Cardinal Health [Member] | Customer Concentration Risk [Member] | Accounts and Other Receivable [Member]            
Accounting Policies [Line Items]            
Concentration risk, percentage 81.00%          
Cardinal Health [Member] | Customer Concentration Risk [Member] | Minimum [Member] | Lymphoseek sales [Member]            
Accounting Policies [Line Items]            
Concentration risk, percentage       99.00% 99.00%  
Former Executive [Member]            
Accounting Policies [Line Items]            
Accounts payable $ 894,000 $ 894,000   $ 894,000