Debt, 2nd AVIC Sale and Leaseback Facility (Details) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($) Installment	Mar. 02, 2022 USD ($)
Debt [Abstract]
Maximum ratio of debt to market value of fleet	75.00%
Minimum free liquidity per delivered vessel	$ 500
Minimum term of time charter assigned as security	12 months
2nd AVIC Sale and Leaseback Facility [Member]
Debt [Abstract]
Face amount		$ 48,200
Term of time charter	10 years
Number of payment installments \| Installment	40
Frequency of periodic payment	quarterly
Installment payment	$ 678
Balloon installment payable at maturity	$ 21,087
Asset cover ratio	120.00%
Maximum ratio of debt to market value of fleet	75.00%
Minimum free liquidity per delivered vessel	$ 500
Minimum term of time charter assigned as security	12 months
2nd AVIC Sale and Leaseback Facility [Member] \| LIBOR [Member]
Debt [Abstract]
Basis spread on variable rate	3.50%
Variable rate	4.72%

Financial ratio that measures the required cover of outstanding debt to the value of the financed asset.

No definition available.

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Namespace Prefix:	tops_
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Balance Type:	na
Period Type:	duration

- Definition

The maximum ratio of total net debt to the aggregate market value of the Company's fleet, current or future.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
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Period Type:	duration

- Definition

The minimum amount of free liquidity per delivered vessel owned/operated by the Company.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Minimum term of time charter assigned as security under the debt instrument, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
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Balance Type:	na
Period Type:	duration

- Definition

The number of periodic payment installments in which the debt is to be repaid.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The value of the interest rate for the reference rate used for the variable rate of the debt agreement as of the end of the reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of time charter under the sale leaseback transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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- Details

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