Annual report pursuant to Section 13 and 15(d)

Secured Loans Receivable (Loans Receivable and Credit Quality Indicators) (Details)

v3.5.0.2
Secured Loans Receivable (Loans Receivable and Credit Quality Indicators) (Details)
$ in Thousands
12 Months Ended
Jun. 30, 2016
USD ($)
class
Jun. 30, 2015
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Classes of receivables | class 3  
Secured loan $ 70,504 $ 49,316
Secured loan, percentage 100.00% 100.00%
Secured loans (current) $ 70,004 $ 48,666
Bullion and Numismatic    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Secured loan $ 69,804 $ 48,466
Secured loan, percentage 99.00% 98.30%
Secured loans (current) $ 69,804 $ 48,466
Secured loans (current), percentage 100.00% 100.00%
Bullion and Numismatic | Loan-to-value of 75% or more    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Secured loans (current) $ 10,231 $ 17,153
Secured loans (current), percentage 14.70% 35.40%
Bullion and Numismatic | Loan-to-value of less than 75%    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Secured loans (current) $ 59,573 $ 31,313
Secured loans (current), percentage 85.30% 64.60%
Bullion    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Secured loan $ 35,168 $ 16,250
Secured loan, percentage 49.90% 33.00%
Numismatic and semi numismatic    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Secured loan $ 34,636 $ 32,216
Secured loan, percentage 49.10% 65.30%
Other pledged assets    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Secured loan $ 700 $ 850
Secured loan, percentage 1.00% 1.70%
Minimum    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Credit quality indicator Loan-to-value threshold percentage   75.00%