XML 57 R45.htm IDEA: XBRL DOCUMENT v3.4.0.3
Note 11 - Fair Value Measurements (Details Textual)
3 Months Ended
Jan. 08, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Fair Value, Inputs, Level 3 [Member]      
Convertible Debt, Fair Value Disclosures   $ 2,300,000 $ 4,800,000
Diffusion LLC [Member] | Licensing Agreements [Member] | Minimum [Member] | Contingent Value Right [Member]      
Fair Value Assumption, Expected Intangible Assets   1,000,000  
Diffusion LLC [Member] | Licensing Agreements [Member] | Maximum [Member] | Contingent Value Right [Member]      
Fair Value Assumption, Expected Intangible Assets   $ 10,000,000  
Diffusion LLC [Member]      
Business Combination, Number of Contingent Value Rights per Share Called by Each Previously Held Share of Common Stock 1    
Business Combination, Period Following Merger in Which Receipt of Cash for Discontinued Product Assets Would Trigger Contingent Value Right Payements 5 years    
Business Combination, Contingent Value Right Payout Maximum $ 50,000,000    
Licensing Agreements [Member] | Minimum [Member] | Contingent Value Right [Member]      
Fair Value Inputs, Likelihood of Assumption Occuring   0.00%  
Licensing Agreements [Member] | Maximum [Member] | Contingent Value Right [Member]      
Fair Value Inputs, Likelihood of Assumption Occuring   100.00%