Quarterly report pursuant to Section 13 or 15(d)

Major Customers and Foreign Sales - Additional Information (Details)

v3.20.4
Major Customers and Foreign Sales - Additional Information (Details) - Net Revenues - Customer Concentration Risk
3 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Customer One    
Revenue, Major Customer [Line Items]    
Concentration risk, percentage 16.00% 11.00%
Customer Two    
Revenue, Major Customer [Line Items]    
Concentration risk, percentage 15.00%  
Customer Three    
Revenue, Major Customer [Line Items]    
Concentration risk, percentage 13.00%