Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Reconciliation of changes in Noncontrolling Interests (Parenthetical) (Details)

v3.23.2
Summary of Significant Accounting Policies - Reconciliation of changes in Noncontrolling Interests (Parenthetical) (Details)
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Apr. 01, 2021
Precious Metals Purchasing Partners, LLC        
Noncontrolling Interest [Line Items]        
Percentage of ownership percentage 50.00% 50.00% 50.00%  
AM&ST Associates, LLC | A Mark Precious Metals, Inc        
Noncontrolling Interest [Line Items]        
Business acquisition, percentage of interests acquired       31.00%
AM&ST Associates, LLC | A Mark Precious Metals, Inc | SilverTowne L.P.        
Noncontrolling Interest [Line Items]        
Percentage of ownership owned by parent       100.00%