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Note 13 - Voyage and Vessel Operating Expenses - Summary of Voyage, Vessel, Operating Expenses and Commissions (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Voyage expenses | $ 1,055,408 | $ 1,261,088 | $ 1,564,489
Vessel operating expenses | 23,983,282 | 19,986,170 | 15,019,342
Port Charges and Canal Dues [Member] |  |  |
Voyage expenses | 251,197 | 384,893 | 1,156,511
Bunkers [Member] |  |  |
Voyage expenses | 804,211 | 876,195 | 407,978
Crew Wages and Related Costs [Member] |  |  |
Vessel operating expenses | 13,111,682 | 11,020,924 | 8,771,386
Insurance [Member] |  |  |
Vessel operating expenses | 1,844,088 | 1,537,539 | 1,261,976
Repairs and Maintenance [Member] |  |  |
Vessel operating expenses | 1,110,995 | 1,043,632 | 643,788
Lubricants [Member] |  |  |
Vessel operating expenses | 2,029,230 | 1,665,849 | 1,169,412
Spares and Consumable Stores [Member] |  |  |
Vessel operating expenses | 4,758,290 | 3,445,422 | 2,391,420
Professional and Legal Fees [Member] |  |  |
Vessel operating expenses | 259,311 | 252,156 | 10,037
Other Vessel Operating Expenses [Member] |  |  |
Vessel operating expenses | $ 869,686 | $ 1,020,648 | $ 771,323

X
- Definition Costs relating to the voyages performed by the vessels and may include port, canal, bunker expenses, commissions and other. + References No definition available. + Details
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Namespace Prefix: | esea_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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X
- Details
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Period Type: |

X
- Details
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X
- Details
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Balance Type: |
Period Type: |

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- Details
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X
- Details
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Data Type: | na
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Period Type: |

X
- Details
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Namespace Prefix: |
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Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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