Bank loan maturity date.

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- Definition

Deferred income from revenue participation rights.

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No definition available.

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- Definition

Investment Agreement Period

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No definition available.

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- Definition

Investment for future revenue rights.

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No definition available.

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- Definition

Maximum Amount Of Financing Available From Future Issuance Of Convertible Preferred Stock

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No definition available.

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- Definition

Payment for one time revenue distribution.

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No definition available.

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- Definition

Percentage of proceeds from shipwrecks receivable under agreement.

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No definition available.

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- Definition

Working capital deficit.

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No definition available.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.18)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 12
-Article 7

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- Definition

Amounts due on short-term bank loans secured by customers' securities on the balance sheet date.

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No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 45
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Commitments and Contingencies - Additional Information (Detail) - USD ($) shares in Millions		1 Months Ended	12 Months Ended
	Mar. 11, 2015	Feb. 28, 2011	Dec. 31, 2015	Mar. 30, 2016	Dec. 31, 2014	Dec. 31, 2013	Jan. 02, 2013	Dec. 09, 2002	May. 26, 1998
Gain Contingencies [Line Items]
Income derived from Cambridge RPC's			$ 12,986
Post finance cost proceeds								5.00%	5.00%
Cash and cash equivalents			2,241,317		$ 3,143,550	$ 21,322,257	$ 10,096,414
Working capital deficit			$ 21,100,000
Bank loan maturity date			Mar. 18, 2017
Total assets			$ 6,913,016		$ 25,089,539
Penelope Mining LLC [Member]
Gain Contingencies [Line Items]
Investment in convertible preferred stock	$ 101,000,000
Investment agreement period	3 years
Minosa [Member]
Gain Contingencies [Line Items]
Amount of debt financed	$ 14,750,000
Bank loan amount			14,750,000
Subsequent Event [Member] \| Oceanica Resources S. de. R.L [Member]
Gain Contingencies [Line Items]
Grant and issuance of new equity shares				3
Maximum [Member] \| Galt Resources [Member]
Gain Contingencies [Line Items]
Investment for future revenue rights		$ 7,512,500
Seattle and Cambridge Projects [Member]
Gain Contingencies [Line Items]
Deferred income from revenue participation rights			$ 887,500