Quarterly report [Sections 13 or 15(d)]

Long-Term Investments - Schedule of Carrying Value and Ownership Percentage of Investment (Details)

v3.25.1
Long-Term Investments - Schedule of Carrying Value and Ownership Percentage of Investment (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Feb. 28, 2025
Jun. 30, 2024
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 38,100   $ 50,200
Carrying Value 38,412   50,458
Pinehurst Coin Exchange, Inc.      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 0   $ 17,503
Ownership Percentage 0.00% [1]   49.00%
Sunshine Minting, Inc.      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 18,484   $ 18,603
Ownership Percentage 44.90%   44.90%
Company A      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 283   $ 283
Ownership Percentage 33.30%   33.30%
Company B      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 2,154   $ 2,036
Ownership Percentage 50.00%   50.00%
Texas Precious Metals, LLC      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 7,378   $ 7,236
Ownership Percentage 12.00%   12.00%
Atkinsons Bullion & Coins      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 3,256   $ 2,783
Ownership Percentage 25.00%   25.00%
APS Investment, LLC      
Schedule Of Equity And Cost Method Investments [Line Items]      
Ownership Percentage   33.30%  
AMS Holding, LLC      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value [2] $ 5,421   $ 2,014
Ownership Percentage [2] 10.00%   33.30%
Company C      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 73   $ 0
Ownership Percentage 33.30%   0.00%
Company D      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 1,033   $ 0
Ownership Percentage 20.00%   0.00%
Company E      
Schedule Of Equity And Cost Method Investments [Line Items]      
Carrying Value $ 330   $ 0
Ownership Percentage 5.00%   0.00%
[1] In February 2025, the Company acquired the remaining outstanding equity interests of Pinehurst; see Note 1 for further information.
[2] APS Investment, LLC is a holding company that as of March 31, 2025 owned a 10% equity interest in AMS Holding, LLC. A-Mark, Pinehurst Coin Exchange, Inc. and Stack's Bowers Galleries each own a one-third equity interest in APS Investment, LLC. In February 2025, the Company acquired both SGI, the parent of Stack's Bowers Galleries and Pinehurst; as a result, the Company owned 100% of APS Investment, LLC and therefore a 10% equity interest of AMS Holding, LLC as of March 31, 2025. Prior to the acquisitions of SGI and Pinehurst in February 2025, the Company owned a 33.3% equity interest in APS Investment, LLC.