Annual report pursuant to Section 13 and 15(d)

Summary of Purchases Under Plan (Details) (Parenthetical)

v3.22.0.1
Summary of Purchases Under Plan (Details) (Parenthetical) - USD ($)
Sep. 30, 2021
Sep. 22, 2021
Jun. 08, 2020
May 31, 2020
Stock Repurchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock Repurchase Program, Authorized Amount $ 1,000,000 $ 1,000,000 $ 1,000,000 $ 1,000,000