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Loans Receivable - Additional Information (Detail) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Aug. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans receivable, accrued interest $ 35,000 $ 28,000  
Weighted average coupon rate on loans receivable 6.79% 7.97%  
Weighted average yield to maturity 9.00% 13.54%  
Period for the return of assets 2 years    
Lender LP [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Secured financing receivable     $ 30,000,000
Elad Canada Ltd [Member] | Lender LP [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Rate of interest for acquisition     50.00%