XML 60 R50.htm IDEA: XBRL DOCUMENT v3.20.2
Note 8 - Geographic Information and Major Customer Data - Major Customers Data As Percentage of Total Revenues (Details) - Revenue from Contract with Customer Benchmark [Member] - Customer Concentration Risk [Member]
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Customer A [Member]        
Percentage of total revenues   23.00% 13.00% 19.00%
Customer B [Member]        
Percentage of total revenues 18.00% 15.00% 12.00% [1] 15.00%
Customer C [Member]        
Percentage of total revenues 16.00%   13.00% [1]  
[1] Less than 10%