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Other Debt - SCHEDULE II - VALUATION and QUALIFYING ACCOUNTS (Tables) | 12 Months Ended
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Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SCHEDULE II - VALUATION and QUALIFYING ACCOUNTS | SCHEDULE II – VALUATION and QUALIFYING ACCOUNTS For the Fiscal Years of 2018, 2019 and 2020 ODYSSEY MARINE EXPLORATION, INC. AND SUBSIDIARIES
|  | Balance at Beginning of Year |  |  | Charged (Credited) to Expenses |  |  | Charged (Credited) to Other Accounts |  |  | Deductions |  |  | Balance at End of Year |
Inventory reserve |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
2019 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
2020 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Accounts receivable reserve |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
2019 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
2020 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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