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Related Party Transactions - Additional Information (Detail) - USD ($) | 6 Months Ended |
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Jun. 30, 2019 | Dec. 31, 2018
Deep Sea Mineral Company, CIC, LLC [Member] |  |
Related Party Transaction [Line Items] |  |
Accounts receivable | $ 452,774 |
Receivable to be paid in cash | 441,024 |
Option to convert receivable to equity | 11,750 |
Monaco [Member] |  |
Related Party Transaction [Line Items] |  |
Operating payable | 213,776 | $ 233,855
Revenue recognized from related party transaction | 1,000,000 |
Accounts receivable | 434,411 | $ 612,498
Entity Controlled By Independent Director [Member] |  |
Related Party Transaction [Line Items] |  |
Earnest Money Deposit Received | 300,000 |
Entity Controlled By Independent Director [Member] | Accounts Payable and Accrued Liabilities [Member] |  |
Related Party Transaction [Line Items] |  |
Break up Fees Payable | 30,000 |
Earnest Money Deposit Payable | $ 300,000 |

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