XML 55 R33.htm IDEA: XBRL DOCUMENT v3.20.4
Summary of Significant Accounting Policies (Details Textual 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-01-01
Dec. 31, 2020
Summary Of Significant Accounting Policies [Line Items]  
Remaining performance obligations expected to be recognized, percentage 90.00%
Remaining performance obligations expected to be recognized, period 3 years