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Organization and Summary of Significant Accounting Policies - Reconciliation of the Beginning and Ending Balances for the Liability Measured at Fair Value on a Recurring Basis (Detail)
12 Months Ended
Dec. 31, 2019
USD ($)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]  
Beginning Balance $ 0
Fair value of hybrid instrument issued 869,783
Gain on derivative (8,299)
Ending Balance $ 861,484