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Loans Payable - Summary of Debt Premium (Parenthetical) (Detail) - USD ($)
Mar. 31, 2017
May 10, 2012
Debt Instrument [Line Items]    
Face amount of new loans   $ 8,000,000
Monaco Notes [Member]    
Debt Instrument [Line Items]    
Face amount of new loans $ 2,800,000  
Monaco Notes [Member] | Paid-in Capital [Member]    
Debt Instrument [Line Items]    
Debt premium recorded to additional paid-in capital $ 817,858