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Accounts Receivable and Other - Summary of Accounts Receivable (Detail) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, net	$ 304,404	$ 789,421
Trade [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	28,159	9,466
Related Party [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	234,955	664,596
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 41,290	$ 115,359

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