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Note 4(a) - Advances for Vessels Acquisitions / Under Construction (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Advances for Vessels Acquisition Under Construction [Table Text Block] |
|  | Advances for vessels acquisitions / under construction |
Balance, December 31, 2018 |  |  | 38,744 |
— Advances paid |  |  | 158,905 |
— Capitalized expenses |  |  | 3,812 |
— Transferred to Vessels, net |  |  | (189,220 | )
Balance, December 31, 2019 |  |  | 12,241 |
— Advances paid |  |  | 117,203 |
— Capitalized expenses |  |  | 3,509 |
— Transferred to Vessels, net |  |  | (76,959 | )
— Transferred to Assets held for sale |  |  | (24,340 | )
Balance, December 31, 2020 |  |  | 31,654 |

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- Definition Tabular disclosure of advance for vessels acquisition under construction. + References No definition available. + Details
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Namespace Prefix: | tops_
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration