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Loans Payable - Summary of Debt Premium (Parenthetical) (Detail) - Monaco Notes [Member] | Sep. 30, 2018 USD ($)
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Debt Instrument [Line Items] |
Face amount of new loans | $ 2,800,000
Paid-in Capital [Member] |
Debt Instrument [Line Items] |
Debt premium recorded to additional paid-in capital | $ 817,858

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