XML 89 R71.htm IDEA: XBRL DOCUMENT v3.21.1

Accrued Expenses - Additional Information (Detail) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2019
Accrued incentive awards	$ 800,000	$ 300,000
Earnest Money Deposit	(450,000)	$ (450,000)
Other Operating accured exploration permit expenses	$ 900,000
Greg Stemm Our Past Chairman [Member]
Earnest Money Deposit			$ 450,000

X

- Definition

Accrued other operating expenses for exploration permit current.

+ References

No definition available.

+ Details

Name:	omex_AccruedOtherOperatingExpensesForExplorationPermitCurrent
Namespace Prefix:	omex_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

earnest money deposit

+ References

No definition available.

+ Details

Name:	omex_EarnestMoneyDeposit
Namespace Prefix:	omex_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=omex_GregStemmOurPastChairmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: