XML 36 R23.htm IDEA: XBRL DOCUMENT v3.20.2
Note 5 - Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
  

Value or Range

Unobservable input

 

(Weighted-Average)

Discount rate

 

8.7%

Probability of achievement

 

50% - 100% (80%)