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Loans Payable - Summary of Gain or Loss Upon Extinguishment Allocation (Detail) - Note 2 - Monaco 2016 [Member] | 12 Months Ended
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Dec. 31, 2018 USD ($)
Extinguishment of Debt [Line Items] |
Difference to APIC | $ 1,211,811
Derivative Liabilities (Share Purchase Options) [Member] |
Extinguishment of Debt [Line Items] |
Difference to APIC | 1,456,825
Monaco Loan (Old Debt) [Member] |
Extinguishment of Debt [Line Items] |
Difference to APIC | 3,372,844
Monaco Loan (New Debt) [Member] |
Extinguishment of Debt [Line Items] |
Difference to APIC | (2,800,000)
Paid-in Capital [Member] | Premium [Member] |
Extinguishment of Debt [Line Items] |
Difference to APIC | $ (817,858)

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