XML 35 R43.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Commitments and Contingencies - Additional Information (Detail) (USD $) | 0 Months Ended | 3 Months Ended | 0 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 09, 2015 | Mar. 31, 2015 | Mar. 11, 2015 | Dec. 31, 2014 | Mar. 31, 2014 | Dec. 31, 2013
Gain Contingencies [Line Items] |  |  |  |  |  |
Minimum bid price | $ 1.00 omex_CommonStockMinimumBidPrice |  |  |  |  |
Number of consecutive business days not complied with minimum bid price | 30 days |  |  |  |  |
Number of days afforded to regain compliance with minimum bid price requirement | 180 days |  |  |  |  |
Cash and cash equivalents |  | $ 704,452 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 3,143,550 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 5,767,721 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 21,322,257 us-gaap_CashAndCashEquivalentsAtCarryingValue
Working capital deficit |  | 13,500,000 omex_WorkingCapitalDeficit |  |  |  |
Bank loan amount |  | 7,700,000 us-gaap_BankLoans |  |  |  |
Bank loan maturity period |  | 2015 |  |  |  |
Total assets |  | 21,076,649 us-gaap_Assets |  | 25,089,539 us-gaap_Assets |  |
Minosa [Member] |  |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |  |
Amount of debt financed |  |  | 14,750,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = omex_MinosaMember |  |  |
Penelope Mining LLC [Member] |  |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |  |
Investment in convertible preferred stock |  |  | $ 101,000,000 omex_MaximumAmountOfFinancingAvailableFromFutureIssuanceOfConvertiblePreferredStock / us-gaap_CounterpartyNameAxis = omex_PenelopeMiningLlcMember |  |  |
Investment agreement period |  |  | 3 years |  |  |

X
- Definition Bank Loan Maturity Period + References No definition available. + Details
Name: | omex_BankLoanMaturityPeriod
Namespace Prefix: | omex_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Stock Minimum Bid Price + References No definition available. + Details
Name: | omex_CommonStockMinimumBidPrice
Namespace Prefix: | omex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Investment Agreement Period + References No definition available. + Details
Name: | omex_InvestmentAgreementPeriod
Namespace Prefix: | omex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum Amount Of Financing Available From Future Issuance Of Convertible Preferred Stock + References No definition available. + Details
Name: | omex_MaximumAmountOfFinancingAvailableFromFutureIssuanceOfConvertiblePreferredStock
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number Of Consecutive Business Periods Not Complied With Minimum Bid Price + References No definition available. + Details
Name: | omex_NumberOfConsecutiveBusinessPeriodsNotCompliedWithMinimumBidPrice
Namespace Prefix: | omex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Periods Afforded To Regain Compliance With Minimum Bid Price + References No definition available. + Details
Name: | omex_NumberOfPeriodsAffordedToRegainComplianceWithMinimumBidPrice
Namespace Prefix: | omex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Working Capital Deficit + References No definition available. + Details
Name: | omex_WorkingCapitalDeficit
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amounts due on short-term bank loans secured by customers' securities on the balance sheet date. + References No definition available. + Details
Name: | us-gaap_BankLoans
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
Name: | us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_GainContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_CounterpartyNameAxis=omex_PenelopeMiningLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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