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Quarterly Financial Data - Unaudited - Consolidated Statement of Operations (Detail) - USD ($)	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
REVENUE
Revenue	$ 175,876								$ 637,190		$ 803,799	$ 1,334,702
OPERATING EXPENSES
Marketing, general and administrative	1,564,156								5,189,410		6,843,181	9,427,428
Operations and research	1,067,142								3,562,705		4,298,179	9,760,470
Total operating expenses	2,631,298								8,752,115
LOSS FROM OPERATIONS	(2,455,422)								(8,114,925)
OTHER INCOME (EXPENSE)
Interest income	655								412,611		412,625	96,478
Interest expense	(1,836,153)								(3,617,336)
Loss on equity method investment	(190,000)								(190,000)		(278,910)	0
Gain on debt extinguishment									21,177,200		21,177,200	0
Gain (loss) sale of wholly owned entity	174,107								174,107
Change in derivative liabilities fair value	(1,859,147)								(1,574,658)		(8,302,866)	(9,914,545)
Other	113,102								(1,494,581)		(1,515,138)	(164,609)
Total other income (expense)	(3,597,436)								14,887,343		6,452,959	(11,969,235)
(LOSS) BEFORE INCOME TAXES	(6,052,858)								6,772,418
Income tax benefit											0	0
NET (LOSS) BEFORE NON-CONTROLLING INTEREST	(6,052,860)								6,772,418
Net loss attributable to noncontrolling interest	2,239,573								6,790,375		$ 9,230,421	$ 7,742,572
NET INCOME / (LOSS) attributable to Odyssey Marine Exploration, Inc.	$ (3,813,285)								$ 13,562,793
NET INCOME / (LOSS) PER SHARE
Net (loss) income per share – basic	$ (0.19)								$ 0.68		$ 0.27	$ (1.28)
Net (loss) income per share – diluted	$ (0.19)								$ 0.46		$ 0.27	$ (1.28)
Weighted average number of common shares outstanding
Basic	20,025,067								19,871,381		19,943,633	17,310,915
Diluted	20,025,067								21,536,962		20,118,877	17,310,915
Previously Reported [Member]
REVENUE
Revenue		$ 172,575	$ 288,739	$ 358,409	$ 390,278	$ 299,606	$ 461,314	$ 689,884		$ 1,048,293
OPERATING EXPENSES
Marketing, general and administrative		1,820,858	1,877,844	2,213,515	2,292,082	1,918,496	3,698,702	4,210,578		6,424,093		$ 8,487,070
Operations and research		1,498,701	1,787,859	1,864,883	1,229,634	5,056,535	3,286,560	6,286,169		8,151,052		9,891,593
Total operating expenses		3,319,559	3,665,703	4,078,398	3,521,716	6,975,031	6,985,262	10,496,747		14,575,145
LOSS FROM OPERATIONS		(3,146,984)	(3,376,964)	(3,719,989)	(3,131,438)	(6,675,425)	(6,523,948)	(9,806,863)		(13,526,852)
OTHER INCOME (EXPENSE)
Interest income		23,424	388,532		2,178	93	411,956	2,272
Interest expense		(4,333,224)	(3,808,586)	(3,664,733)	(3,552,539)	(3,225,653)	(8,141,810)	(6,778,193)		(10,440,654)
Gain on debt extinguishment		(301,414)	21,478,614				21,177,200
Change in derivative liabilities fair value						0						0
Other		(283,897)	(322,251)	(4,835)	140,361	(190,257)	(606,148)	(49,896)		(54,731)
Total other income (expense)		(4,895,111)	17,736,309	(3,669,568)	(3,410,000)	(3,415,817)	12,841,198	(6,825,817)		(10,495,385)		$ (13,839,361)
(LOSS) BEFORE INCOME TAXES		(8,042,095)	14,359,345	(7,389,557)	(6,541,438)	(10,091,242)	6,317,250	(16,632,680)		(24,022,237)
Income tax benefit		3,046	5,746				8,792
NET (LOSS) BEFORE NON-CONTROLLING INTEREST		(8,039,049)	14,365,091	(7,389,557)	(6,541,438)	(10,091,242)	6,326,042	(16,632,680)		(24,022,237)
Net loss attributable to noncontrolling interest		2,315,359	2,235,443	1,934,328	1,857,953	1,861,013	4,550,802	3,718,966		5,653,294
NET INCOME / (LOSS) attributable to Odyssey Marine Exploration, Inc.		$ (5,723,690)	$ 16,600,534	$ (5,455,229)	$ (4,683,485)	$ (8,230,229)	$ 10,876,844	$ (12,913,714)		$ (18,368,943)
NET INCOME / (LOSS) PER SHARE
Net (loss) income per share – basic		$ (0.29)	$ 0.84	$ (0.28)	$ (0.3)	$ (0.57)	$ 0.55	$ (0.86)		$ (1.11)		$ (1.34)
Net (loss) income per share – diluted		$ (0.29)	$ 0.83	$ (0.28)	$ (0.3)	$ (0.57)	$ 0.54	$ (0.86)		$ (1.11)		$ (1.34)
Weighted average number of common shares outstanding
Basic		19,918,677	19,666,459	19,482,118	15,803,746	14,365,633	19,793,265	15,088,662		16,569,240		17,310,915
Diluted		19,918,677	19,923,445	19,482,118	15,803,746	14,365,633	20,019,461	15,088,662		16,569,240		17,310,915
Litigation Financing Adjustment [Member]
OPERATING EXPENSES
Marketing, general and administrative		$ (11,530)	$ (61,918)	$ (36,724)	$ (36,724)	$ (36,724)	$ (73,448)	$ (73,448)		$ (110,172)		$ (146,896)
Operations and research												0
Total operating expenses		(11,530)	(61,918)	(36,724)	(36,724)	(36,724)	(73,448)	(73,448)		(110,172)
LOSS FROM OPERATIONS		11,530	61,918	36,724	36,724	36,724	73,448	73,448		110,172
OTHER INCOME (EXPENSE)
Interest expense		3,253,645	3,102,064	3,160,329	2,977,531	2,480,488	6,355,709	5,458,019		8,618,348
Change in derivative liabilities fair value		(1,685,516)	(1,685,517)			(1,521,543)	(3,371,033)	(3,043,086)		(5,539,629)		(6,086,172)
Other			(1,000,000)				(1,000,000)
Total other income (expense)		1,568,129	416,547	2,613,786	(494,012)	958,945	1,984,676	464,933		3,078,719		$ 5,698,499
Change in derivative liabilities fair value				(546,543)	(3,471,543)			(4,993,086)
(LOSS) BEFORE INCOME TAXES		1,579,659	478,465	2,650,510	(457,288)	995,669	2,058,124	538,381		3,188,891
NET (LOSS) BEFORE NON-CONTROLLING INTEREST		1,579,659	478,465	2,650,510	(457,288)	995,669	2,058,124	538,381		3,188,891
NET INCOME / (LOSS) attributable to Odyssey Marine Exploration, Inc.		$ 1,579,659	$ 478,465	$ 2,650,510	$ (457,288)	$ 995,669	$ 2,058,124	$ 538,381		$ 3,188,891
NET INCOME / (LOSS) PER SHARE
Net (loss) income per share – basic		$ 0.08	$ 0.02	$ 0.14	$ (0.03)	$ 0.07	$ 0.1	$ 0.04		$ 0.19		$ 0.34
Net (loss) income per share – diluted		$ 0.08	$ 0.02	$ 0.14	$ (0.03)	$ 0.07	$ 0.1	$ 0.04		$ 0.19		$ 0.34
Weighted average number of common shares outstanding
Basic												0
Diluted												0
2022 Warrant Adjustment [Member]
OPERATING EXPENSES
Marketing, general and administrative					$ 1,087,254			$ 1,087,254		$ 1,087,254
Total operating expenses					1,087,254			1,087,254		1,087,254
LOSS FROM OPERATIONS					(1,087,254)			(1,087,254)		(1,087,254)
OTHER INCOME (EXPENSE)
Change in derivative liabilities fair value		$ (1,076,881)	$ 4,732,403				$ 3,655,522	(3,824,795)		(662,475)
Total other income (expense)		(1,076,881)	4,732,403	$ 1,212,320	(1,874,795)		3,655,522	(1,874,795)		(662,475)
Change in derivative liabilities fair value				1,212,320	(1,874,795)			(1,874,795)
(LOSS) BEFORE INCOME TAXES		(1,076,881)	4,732,403	1,212,320	(2,962,049)		3,655,522	(2,962,049)		(1,749,729)
NET (LOSS) BEFORE NON-CONTROLLING INTEREST		(1,076,881)	4,732,403	1,212,320	(2,962,049)		3,655,522	(2,962,049)		(1,749,729)
NET INCOME / (LOSS) attributable to Odyssey Marine Exploration, Inc.		$ (1,076,881)	$ 4,732,403	$ 1,212,320	$ (2,962,049)		$ 3,655,522	$ (2,962,049)		$ (1,749,729)
NET INCOME / (LOSS) PER SHARE
Net (loss) income per share – basic		$ (0.05)	$ 0.24	$ 0.06	$ (0.19)		$ 0.18	$ (0.2)		$ (0.11)
Net (loss) income per share – diluted		$ (0.05)	$ 0.24	$ 0.06	$ (0.19)		$ 0.18	$ (0.2)		(0.11)
Other Adjustments [Member]
OPERATING EXPENSES
Marketing, general and administrative												$ 0
Operations and research		$ (280,595)	$ (503,133)				$ (790,997)					(131,123)
Total operating expenses		(280,595)	(503,133)				(790,997)
LOSS FROM OPERATIONS		280,595	503,133				790,997
OTHER INCOME (EXPENSE)
Interest expense		4,918					4,918
Change in derivative liabilities fair value						$ (311,123)		$ 0				0
Other		(433)	(1,102)				(1,535)
Total other income (expense)		4,485	(1,102)		$ 311,123	(311,123)	3,383					$ 0
Change in derivative liabilities fair value					311,123
(LOSS) BEFORE INCOME TAXES		285,080	502,031		311,123	(311,123)	794,380
Income tax benefit		(3,046)	(5,746)				(8,792)
NET (LOSS) BEFORE NON-CONTROLLING INTEREST		282,034	496,285		311,123	(311,123)	785,588
NET INCOME / (LOSS) attributable to Odyssey Marine Exploration, Inc.		$ 282,034	$ 496,285		$ 311,123	$ (311,123)	$ 785,588
NET INCOME / (LOSS) PER SHARE
Net (loss) income per share – basic		$ 0.01	$ 0.03		$ 0.02	$ (0.03)	$ 0.04					$ 0.01
Net (loss) income per share – diluted		$ 0.02	$ 0.03		$ 0.02	$ (0.03)	$ 0.04			$ 0		$ 0.01
Weighted average number of common shares outstanding
Basic												0
Diluted			(44,901)				38,433					0
Restated [Member]
REVENUE
Revenue		$ 172,575	$ 288,739	$ 358,409	$ 390,278	$ 299,606	$ 461,314	689,884		$ 1,048,293
OPERATING EXPENSES
Marketing, general and administrative		1,809,328	1,815,926	2,176,791	3,342,612	1,881,772	3,625,254	5,224,384		7,401,175
Operations and research		1,218,106	1,284,726	1,864,883	1,229,634	5,056,535	2,495,563	6,286,169		8,151,052
Total operating expenses		3,027,434	3,100,652	4,041,674	4,572,246	6,938,307	6,120,817	11,510,553		15,552,227
LOSS FROM OPERATIONS		(2,854,859)	(2,811,913)	(3,683,265)	(4,181,968)	(6,638,701)	(5,659,503)	(10,820,669)		(14,503,934)
OTHER INCOME (EXPENSE)
Interest income		23,424	388,532		2,178	93	411,956	2,272
Interest expense		(1,074,661)	(706,522)	(504,404)	(575,008)	(745,165)	(1,781,183)	(1,320,174)		(1,822,306)
Gain on debt extinguishment		(301,414)	21,478,614				21,177,200
Change in derivative liabilities fair value		(2,762,397)	3,046,886			(1,832,666)	284,489	(6,867,881)		(6,202,104)
Other		(284,330)	(1,323,353)	(4,835)	140,361	(190,257)	(1,607,683)	(49,896)		(54,731)
Total other income (expense)		(4,399,378)	22,884,157	156,538	(5,467,684)	(2,767,995)	18,484,779	(8,235,679)		(8,079,141)
Change in derivative liabilities fair value				665,777	(5,035,215)			(6,867,881)
(LOSS) BEFORE INCOME TAXES		(7,254,237)	20,072,244	(3,526,727)	(9,649,652)	(9,406,696)	12,825,276	(19,056,348)		(22,583,075)
NET (LOSS) BEFORE NON-CONTROLLING INTEREST		(7,254,237)	20,072,244	(3,526,727)	(9,649,652)	(9,406,696)	12,825,276	(19,056,348)		(22,583,075)
Net loss attributable to noncontrolling interest		2,315,359	2,235,443	1,934,328	1,857,953	1,861,013	4,550,802	3,718,966		5,653,294
NET INCOME / (LOSS) attributable to Odyssey Marine Exploration, Inc.		$ (4,938,878)	$ 22,307,687	$ (1,592,399)	$ (7,791,699)	$ (7,545,683)	$ 17,376,078	$ (15,337,382)		$ (16,929,781)
NET INCOME / (LOSS) PER SHARE
Net (loss) income per share – basic		$ (0.25)	$ 1.13	$ (0.08)	$ (0.5)	$ (0.53)	$ 0.88	$ (1.02)		$ (1.02)
Net (loss) income per share – diluted		$ (0.25)	$ 1.12	$ (0.08)	$ (0.49)	$ (0.53)	$ 0.87	$ (1.02)		$ (1.02)
Weighted average number of common shares outstanding
Basic		19,918,677	19,666,459	19,482,118	15,803,746	14,365,633	19,793,265	15,088,662		16,569,240
Diluted		19,918,677	19,878,544	19,482,118	15,803,746	14,365,633	20,057,894	15,088,662		16,569,240
Marine Services [Member]
REVENUE
Revenue	$ 190,699								$ 628,907		$ 779,581	$ 1,150,767
Marine Services [Member] | Previously Reported [Member]
REVENUE
Revenue		$ 166,832	$ 271,375	$ 298,083	$ 300,000	$ 294,975	$ 438,208	$ 594,975		$ 893,058
Marine Services [Member] | Restated [Member]
REVENUE
Revenue		166,832	271,375	298,083	300,000	294,975	438,208	594,975		893,058
Product and Service, Other [Member]
REVENUE
Revenue	$ (14,823)								$ 8,283		$ 24,218	$ 183,935
Product and Service, Other [Member] | Previously Reported [Member]
REVENUE
Revenue		5,743	17,364	60,326	90,278	4,631	23,106	94,909		155,235
Product and Service, Other [Member] | Restated [Member]
REVENUE
Revenue		$ 5,743	$ 17,364	$ 60,326	$ 90,278	$ 4,631	$ 23,106	$ 94,909		$ 155,235

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