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v3.21.1

Note 2 - Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Other Fixed Assets, Useful Life Assumptions [Table Text Block] |
Description | Useful Life (years)
Cars | 6
Office equipment | 5
Furniture and fittings | 5
Computer equipment | 3

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- Definition Represents other fixed assets useful life assumptions. + References No definition available. + Details
Name: | tops_OtherFixedAssetsUsefulLifeAssumptionsTableTextBlock
Namespace Prefix: | tops_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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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