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Related Party Transactions - Additional Information (Detail)		6 Months Ended	12 Months Ended
	Dec. 09, 2002 Directors	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	May 26, 1998
Related Party Transaction [Line Items]
Post finance cost proceeds	5.00%				5.00%
Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Accounts receivable			$ 954,764
Receivable to be paid in cash			202,097
Option to convert receivable to equity			752,667
Back Office Technical and Support Services [Member] | Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Accounts receivable			731,746
Monaco [Member]
Related Party Transaction [Line Items]
Accounts receivables			612,498	$ 183,453
Operating payable			233,855	$ 200,801
Lease amount		$ 20,080
Revenue recognized from related party transaction			$ 2,200,000
Georgia LLC [Member]
Related Party Transaction [Line Items]
Post finance cost proceeds	5.00%
Directors' interest in ownership of Company	58.00%
Officers and directors owning an interest in the limited liability | Directors	2

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