XML 70 R50.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 9 - Convertible Debt (Details Textual) - USD ($)
12 Months Ended 72 Months Ended
Sep. 27, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2015
Jan. 08, 2016
Litigation Settlement, Expense   $ 2,500,000 $ 0    
Convertible Notes Payable   2,430,000 1,245,000 $ 1,245,000  
Debt Conversion, Original Debt, Amount   700,000 19,100,000    
Debt Conversion, Converted Instrument, Related Accrued Interest   $ 16,400 $ 600,000    
Diffusion LLC [Member]          
Convertible Notes Payable         $ 1,100,000
2016 Convertible Notes [Member]          
Debt Instrument, Interest Rate, Stated Percentage   6.00%      
Debt Instrument, Convertible, Conversion Price   $ 3.50      
Convertible Notes Payable   $ 1,880,000      
2016 Convertible Notes [Member] | Settlement Agreement [Member]          
Debt Instrument, Face Amount $ 1,900,000        
Debt Instrument, Term 1 year        
Debt Instrument, Interest Rate, Stated Percentage 6.00%        
Debt Instrument, Convertible, Conversion Price $ 3.50        
Litigation Settlement, Expense $ 2,500,000        
Convertible Notes [Member]          
Proceeds from Issuance of Unsecured Debt       $ 22,400,000  
Debt Instrument, Interest Rate, Effective Percentage   1.00%      
Qualified Financing, Minimum Amount of Gross Proceeds   $ 50,000,000      
Debt Conversion, Converted Instrument, Shares Issued   217,122 5,891,574    
Convertible Notes [Member] | Minimum [Member]          
Debt Instrument, Interest Rate, Stated Percentage     1.00% 1.00%  
Convertible Notes [Member] | Maximum [Member]          
Debt Instrument, Interest Rate, Stated Percentage     1.50% 1.50%