Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Details)

v3.23.3
Related Party Transactions - Additional Information (Details)
3 Months Ended
Apr. 01, 2021
USD ($)
Sep. 30, 2023
USD ($)
Investment
Sep. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
Jun. 27, 2022
Related Party Transaction [Line Items]          
Number of investments | Investment   7      
Carrying Value   $ 91,000,000   $ 88,300,000  
Earnings from equity method investments   2,709,000 $ 2,677,000    
Dividends and distributions received from equity method investees   269,000 551,000    
Selling, general, and administrative expenses   21,845,000 17,784,000    
Collectible Card Partners, LLC | Notes Payable          
Related Party Transaction [Line Items]          
Maximum borrowing $ 4,000,000        
Line of credit, termination date Apr. 01, 2024        
Borrowings due on demand   300,000   $ 500,000  
Interest expense   $ 2,000 15,000    
Silver Gold Bull, Inc.          
Related Party Transaction [Line Items]          
Business acquisition, option to purchase additional percentage of the outstanding equity   27.60%   27.60% 27.60%
Business acquisition, percentage of interests acquired   40.00%     40.00%
Fair value of option to purchase investment   $ 5,300,000   $ 5,300,000  
Exercise of option to acquire additional ownership interest start month and year   2023-12      
Exercise of option to acquire additional ownership interest end month and year   2024-09      
Stack's Bowers Galleries | Subleasing Agreement          
Related Party Transaction [Line Items]          
Selling, general, and administrative expenses   $ 12,000 0    
Equity method investee          
Related Party Transaction [Line Items]          
Number of investments | Investment   6      
Related Party          
Related Party Transaction [Line Items]          
Other income   $ 300,000 $ 500,000