Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Revenue From Contracts With Customers (Tables)

v3.19.1
Note 3 - Revenue From Contracts With Customers (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Disaggregation of Revenue [Table Text Block]
T
hree Months Ended March 31, 2019
 
Diagnostics
 
Royalty revenue:
       
Europe
  $
3,150
 
         
Other revenue:
       
Additional stability studies
  $
11,024
 
T
hree Months Ended March 31, 2018
 
Diagnostics
 
Royalty revenue:
       
Europe
  $
795
 
         
Other revenue:
       
Additional stability studies
  $
15,037
 
Contract with Customer, Asset and Liability [Table Text Block]
   
Three Months Ended March 31,
 
   
201
9
   
201
8
 
Total deferred revenue, beginning of period
  $
711,024
    $
26,061
 
Impact of adoption of ASU 2014-09 and related standards
   
     
700,000
 
Revenue recognized from satisfaction of performance obligations
   
(11,024
)
   
(15,037
)
Total deferred revenue, end of period
  $
700,000
    $
711,024