Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details Textual)

v3.3.1.900
Commitments and Contingencies (Details Textual) - USD ($)
 1 Months Ended 12 Months Ended
Apr. 30, 2013
Feb. 13, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2011
Commitments and Contingencies            
Gains (Losses) on Extinguishment of Debt, Total   $ 1,900,000 $ 0 $ 0 $ 1,860,000  
Extinguishment of Debt, Amount   $ 7,500,000        
Repayments of Long-term Debt     0 0 2,500,000  
Operating Leases, Rent Expense     $ 211,000 $ 209,000 $ 210,000  
Deerfield Promissory Notes [Member]            
Commitments and Contingencies            
Debt Instrument, Face Amount           $ 20,000,000
Debt Instrument, Interest Rate, Stated Percentage           8.50%
Accrued Royalties           $ 3,000,000
Investment Warrants, Exercise Price           $ 6.88
Royalty Expense           $ 40,000,000
Warrants To Purchase Common Stock           1,090,910
Deerfield Warrant [Member]            
Commitments and Contingencies            
Repayments of Long-term Debt $ 2,500,000