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Loans Payable - Note 3 - MINOSA - Additional Information (Detail)		1 Months Ended	4 Months Ended	12 Months Ended
	May 11, 2015 USD ($)	Aug. 31, 2016	Jun. 30, 2015 Tranches	Dec. 31, 2016 USD ($)	Mar. 11, 2015 USD ($)
Debt Instrument [Line Items]
Share repurchase agreement expiration date				Mar. 30, 2016
Promissory note outstanding amount				$ 14,750,000
Call option expiration date				Mar. 11, 2016
Debt instrument maturity date		Aug. 31, 2018
Derivative, fixed value				$ 40,000,000
Estimated market rate loan percentage				15.00%
Debt discount amount				$ 383,148
Oceanica Call Option [Member]
Debt Instrument [Line Items]
Stock granted during period, value	$ 40,000,000			$ 40,000,000
Stock granted during period, percentage	54.00%			54.00%
Promissory Note [Member]
Debt Instrument [Line Items]
Promissory note face amount	$ 14,750,000
Interest rate, stated percentage				8.00%
Debt instrument maturity date				Mar. 18, 2017
Accrued interest				$ 1,159,825
Promissory Note [Member] | Stock Purchase Agreement [Member] | MINOSA [Member]
Debt Instrument [Line Items]
Number of advances | Tranches			5
Promissory Note [Member] | Stock Purchase Agreement [Member] | Maximum [Member] | MINOSA [Member]
Debt Instrument [Line Items]
Promissory note face amount					$ 14,750,000

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