XML 31 R47.htm IDEA: XBRL DOCUMENT v2.4.1.9

Mortgage and Loans Payable - Schedule of Disbursement of Promissory Notes (Detail) (USD $)	Mar. 31, 2015
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	$ 9,955,000us-gaap_ConvertibleNotesPayable
Minosa [Member]
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	14,750,000us-gaap_ConvertibleNotesPayable / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember
Minosa [Member] | March 11, 2015 (Received March 2015) [Member]
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	2,000,000us-gaap_ConvertibleNotesPayable / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember / us-gaap_LongtermDebtTypeAxis = omex_PromissoryNoteIssuedOnMarchElevenTwoThousandFifteenMember
Minosa [Member] | March 31, 2015 (Received April 2015) [Member]
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	6,000,000us-gaap_ConvertibleNotesPayable / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember / us-gaap_LongtermDebtTypeAxis = omex_PromissoryNoteIssuedOnMarchThirtyOneTwoThousandFifteenMember
Minosa [Member] | April 30, 2015 (Received April 2015) [Member]
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	3,000,000us-gaap_ConvertibleNotesPayable / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember / us-gaap_LongtermDebtTypeAxis = omex_PromissoryNoteIssuedOnAprilThirtyTwoThousandFifteenMember
Minosa [Member] | May 31, 2015 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	2,000,000us-gaap_ConvertibleNotesPayable / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember / us-gaap_LongtermDebtTypeAxis = omex_PromissoryNoteIssuedOnMayThirtyOneTwoThousandFifteenMember
Minosa [Member] | June 30, 2015 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of promissory note	$ 1,750,000us-gaap_ConvertibleNotesPayable / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember / us-gaap_LongtermDebtTypeAxis = omex_PromissoryNoteIssuedOnJuneThirtyTwoThousandFifteenMember

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16(a))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

+ Details

Name:	us-gaap_ConvertibleNotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=omex_MinosaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: