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Chartering commission percentage paid to related party on all freight, hire and demurrage revenues.

No definition available.

Name:	tops_CharteringCommissionPercentage
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Data Type:	dtr-types:percentItemType
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Period Type:	duration

Amount of commission with related party for the sale and purchase of vessels recognized.

No definition available.

Name:	tops_CommissionForSaleAndPurchaseOfVessels
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of commission with related party on charter hire agreements recognized.

No definition available.

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Percentage commission paid to related party on all gross vessel sale proceeds or the purchase price paid for vessels.

No definition available.

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Inflation measured by consumer price index (CPI) is defined as the change in the prices of a basket of goods and services that are typically purchased by specific groups of households.

No definition available.

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Daily fee for superintendent visits paid to related party.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Daily management fee paid to related party for the provision of technical, commercial, operation, insurance, bunkering and crew management.

No definition available.

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Period of time daily management fee commences before the vessel is scheduled to be delivered by the shipyard, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

No definition available.

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Financing fee percentage paid to a related party on derivative agreements and loan financing or refinancing.

No definition available.

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Amount of financing fees with related party capitalized.

No definition available.

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Amount of management fees with related party recognized for all operational, technical and commercial functions relating to the chartering and operation of Company vessels.

No definition available.

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Balance Type:	debit
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Amount of management fees with related party capitalized for all newbuilding vessels while the vessels are under construction.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of newbuilding supervision-related, pass-through costs with related party capitalized.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Amount of newbuilding vessels monitoring fee capitalized in related party transaction.

No definition available.

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Percentage of commission to related party as a newbuilding vessels monitoring fee paid on delivery of newbuilding vessel.

No definition available.

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Percentage of commission to related party as a newbuilding vessels monitoring fee paid on launching of the newbuilding vessel.

No definition available.

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Percentage of commission to related party as a newbuilding vessels monitoring fee paid on the purchase of newbuilding construction contract.

No definition available.

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Percentage of commission to related party as a newbuilding vessels monitoring fee paid on steel cutting of newbuilding vessel.

No definition available.

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Data Type:	dtr-types:percentItemType
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Period Type:	instant

Advance notice period required to terminate agreement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

No definition available.

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Percentage increase (decrease) in fees payable, if the Consumer Price Inflation (CPI) is less than 2%.

No definition available.

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Percentage increase (decrease) in fees payable, if the Consumer Price Inflation (CPI) is more than 5%.

No definition available.

Name:	tops_PercentageIncreaseDecreaseInFeesPayableCondition2
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- References

No definition available.

Name:	tops_RelatedPartyExpensesAbstract
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Data Type:	xbrli:stringItemType
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Term of agreement with related party, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

No definition available.

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Balance Type:	na
Period Type:	duration

Amount of superintendent fees with related party recognized.

No definition available.

Name:	tops_SuperintendentFees
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Amount of superintendent fees with related party capitalized for superintendent visits to newbuilding vessels while the vessels are under construction.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Percentage of supervision services paid to a related party.

No definition available.

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Amount of supervision services fees with related party capitalized for all newbuilding vessels while the vessels are under construction.

No definition available.

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Balance Type:	debit
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Number of months of fees payable used to determine termination fee, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

No definition available.

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481372/852-10-55-10

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Publisher FASB
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Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

No definition available.

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Amount of transactions with related party during the financial reporting period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-3

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Data Type:	na
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