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Note 14 - Voyage, Vessel Operating Expenses and Commissions (Detail) - Summary of Voyage, Vessel Operating Expenses, and Commissions (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Voyage Expense | $ 1,329,668 | $ 777,902 | $ 1,596,569
Crews Wages and Related Costs (Member) |  |  |
Vessel Operating Expenses | 13,864,535 | 14,137,227 | 12,144,125
Insurance (Member) |  |  |
Vessel Operating Expenses | 2,435,144 | 2,691,918 | 2,521,256
Repairs and Maintenance (Member) |  |  |
Vessel Operating Expenses | 511,569 | 601,254 | 524,026
Lubricants [Member] |  |  |
Vessel Operating Expenses | 2,846,087 | 2,712,901 | 2,187,351
Spares and Consumable Stores (Member) |  |  |
Vessel Operating Expenses | 4,083,590 | 4,590,835 | 3,252,381
Professional and Legal Fees (Member) |  |  |
Vessel Operating Expenses | 137,047 | 111,043 | 113,202
Other - Vessel Operating Expenses (Member) |  |  |
Vessel Operating Expenses | 1,197,167 | 1,404,161 | 764,851
Total Vessel Operating Expenses (Member) |  |  |
Vessel Operating Expenses | 25,075,139 | 26,249,339 | 21,507,192
Port Charges and Canal Dues (Member) |  |  |
Voyage Expense | 442,783 | 304,951 | 578,520
Laid-Up Vessel Re-Activation Costs (Member) |  |  |
Voyage Expense |  |  | 565,653
Bunkers [Member] |  |  |
Voyage Expense | 886,885 | 472,951 | 452,396
Total Voyage Expense (Member) |  |  |
Voyage Expense | $ 1,329,668 | $ 777,902 | $ 1,596,569

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- 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
Name: | esea_VoyageExpenses
Namespace Prefix: | esea_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 5 + Details
Name: | us-gaap_OtherCostAndExpenseOperating
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration