Secured Loans Receivable - Schedule of Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Jun. 30, 2025 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 120,351 | $ 94,037 |
| Bullion and Numismatic and Semi-numismatic and Graded Sports Memorabilia | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 120,351 | $ 94,037 |
| Secured loans (current), percentage | 100.00% | 100.00% |
| Loan-to-value of 75% or More | Bullion and Numismatic and Semi-numismatic and Graded Sports Memorabilia | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 8,161 | $ 11,101 |
| Secured loans (current), percentage | 6.80% | 11.80% |
| Loan-to-value of Less than 75% | Bullion and Numismatic and Semi-numismatic and Graded Sports Memorabilia | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 112,190 | $ 82,936 |
| Secured loans (current), percentage | 93.20% | 88.20% |