Quarterly report pursuant to Section 13 or 15(d)

Secured Loans Receivable (Narrative) (Details)

v3.10.0.1
Secured Loans Receivable (Narrative) (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2018
USD ($)
loan
Dec. 31, 2017
USD ($)
Dec. 31, 2018
USD ($)
class
loan
Dec. 31, 2017
USD ($)
Jun. 30, 2018
USD ($)
loan
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Unamortized loan commitment and origination fees and unamortized discounts or premiums $ 29,000   $ 29,000   $ 54,000
Loans receivable average effective rate of interest (percentage)     9.60%   9.60%
Number of classes of receivables | class     2    
Loans receivable payment terms for interest     30 days    
Delinquent period     30 days    
Loan receivable liquidation period post default     90 days    
Number of loans | loan 0   0   0
Loan impairment costs $ 0 $ 0 $ 0 $ 0  
Maximum          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Secured loans-to-value percentage 100.00%   100.00%   100.00%