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Accounts Receivable and Other, Net - Summary of Accounts Receivable (Detail) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total accounts receivable, net | $ 160,257 | $ 421,593
Trade [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable, gross | 0 | 161,937
Related Party [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable, gross | 160,220 | 216,603
Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable, gross | $ 37 | $ 43,053

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