Quarterly report pursuant to Section 13 or 15(d)

Secured Loans Receivable - Additional Information (Details)

v3.20.1
Secured Loans Receivable - Additional Information (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2020
USD ($)
loan
Mar. 31, 2020
USD ($)
loan
Jun. 30, 2019
loan
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans receivable average effective rate of interest (percentage)   8.20% 10.20%
Loans receivable payment terms for interest   180 days  
Loan receivable liquidation period post default   20 days  
Number of loans | loan 0 0 0
Loan impairment costs | $ $ 0 $ 0  
Maximum      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Percentage of loan balance outstanding   85.00%  
Secured loans-to-value percentage 100.00% 100.00% 100.00%
Bullion      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Percentage of Loan-to-value ratio   75.00%  
Numismatic and Semi-numismatic      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Percentage of Loan-to-value ratio   65.00%