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Commitments and Contingencies (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Rent expense under operating leases $ 192,000 $ 314,000
Minimum payment commitment 159,000  
Virginia Biotech Research Partnership Laboratory [Member]    
Minimum payment commitment 14,000  
Virginia Biotech Research Partnership Office Space [Member]    
Minimum payment commitment 18,000  
Savills Studley San Diego Office Space [Member]    
Minimum payment commitment 5,000  
Avtotehna [Member]    
Monthly rental expense 3,244  
Minimum payment commitment $ 122,000  
Leasehold improvements   $ 185,000
Lease expiration date Feb. 01, 2019