XML 68 R57.htm IDEA: XBRL DOCUMENT v3.20.2
Note 11 - Revenue 2 (Details Textual)
Sep. 30, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01  
Revenue, Remaining Performance Obligation, Percentage 41.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year) 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue, Remaining Performance Obligation, Percentage 50.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year) 1 year