Annual report pursuant to Section 13 and 15(d)

Inventory (Narrative) (Details)

v3.3.1.900
Inventory (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Inventory [Line Items]    
Inventory reserves $ 344,719 $ 539,027
Inventory, cost capitalized during period 1,100,000 110,000
Inventory write-down 143,493 539,027
Obsolescence Reserves [Member]    
Inventory [Line Items]    
Inventory write-down 52,000 539,000
Lymphoseek Inventory Used in Development Activity [Member]    
Inventory [Line Items]    
Inventory write-down 446,000 $ 198,000
Production Materials [Member]    
Inventory [Line Items]    
Inventory write-down $ 120,000