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Inventory - Schedule of Inventory (Detail)	Dec. 31, 2014 USD ($)
Inventory Disclosure [Abstract]
Recovered cargo	$ 5,681,264
Packaging	70,560
Merchandise	405,467
Merchandise reserve	(371,332)
Total Inventory (current and non-current)	$ 5,785,959

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Retail related recovered cargo.

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Amount of valuation reserve for inventory.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.BB)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Section S99
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Carrying amount as of the balance sheet date of merchandise inventory purchased by a retailer, wholesaler or distributor and held for future sale.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Carrying amount as of the balance sheet date of items used in storage, presentation or transportation of physical goods that are targeted for sale to end users.

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