Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Revenue From Contracts With Customers (Tables)

v3.19.2
Note 3 - Revenue From Contracts With Customers (Tables)
 6 Months Ended
Jun. 30, 2019
Notes Tables  
Disaggregation of Revenue [Table Text Block]
T
hree Months Ended
June 30
, 2019
  
Diagnostics
  
Royalty revenue:
        
Europe
   $
5,940
  
         
License revenue:
        
NAV4694 sublicense
   $
9,953
  
T
hree Months Ended
June 30
, 2018
  
Diagnostics
  
Royalty revenue:
        
Europe
   $
6,665
  
         
License revenue:
        
NAV4694 sublicense
   $
257,709
  
Six Months Ended June 30, 2019
  
Diagnostics
  
Royalty revenue:
        
Europe
   $
9,090
  
         
License revenue:
        
NAV4694 sublicense
   $
9,953
  
         
Other revenue:
        
Additional stability studies
   $
11,024
  
Six Months Ended June 30, 2018
  
Diagnostics
  
Royalty revenue:
        
Europe
   $
7,460
  
         
License revenue:
        
NAV4694 sublicense
   $
257,709
  
         
Other revenue:
        
Additional stability studies
   $
15,037
  
Contract with Customer, Asset and Liability [Table Text Block]
   
Three Months Ended
June
30,
    
Six
Months Ended
June
30,
  
   
2019
    
2018
    
2019
    
2018
  
Total deferred revenue, beginning of period
   $
700,000
     $
711,024
     $
711,024
     $
26,061
  
Impact of adoption of ASU 2014-09 and related standards
    
—
      
—
      
—
      
700,000
  
Revenue deferred related to sublicense
    
495,000
      
10,000
      
495,000
      
10,000
  
Revenue recognized from satisfaction of performance obligations
    
—
      
—
      
(11,024
)
    
(15,037
)
Total deferred revenue, end of period
   $
1,195,000
     $
721,024
     $
1,195,000
     $
721,024