XML 136 R67.htm IDEA: XBRL DOCUMENT
v3.21.1

Note 9 - Common and Preferred Stock, Additional Paid-in Capital and Dividends (Details Textual) |  |  |  |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 7 Months Ended | 12 Months Ended | 24 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 10, 2020 | Aug. 07, 2020 | Nov. 06, 2019 USD ($) $ / shares shares | Sep. 13, 2019 USD ($) $ / shares shares | Aug. 22, 2019 | Oct. 26, 2018 USD ($) $ / shares shares | Mar. 26, 2018 | May 08, 2017 USD ($) $ / shares shares | Mar. 11, 2020 USD ($) shares | Jul. 24, 2018 USD ($) shares | Jul. 06, 2020 USD ($) shares | Dec. 31, 2019 USD ($) $ / shares shares | Jul. 31, 2019 USD ($) shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) $ / shares shares | Feb. 12, 2020 USD ($) | Feb. 06, 2019 $ / shares | Jan. 11, 2019 $ / shares | Mar. 25, 2018 USD ($)
Stock Issued During Period, Value, New Issues | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 121,178,000 |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | 129,660,000 | $ 18,892,000 | $ 5,781,000 |  |  |  |  |
Proceeds from Warrant Exercises | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 4,619,000 | 2,330,000 |  |  |  |  |
Dividends, Total | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | 0 |  |  |  |  |
Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.09 |  |  |  |  |  |  |
Warrants Issued With the 2018 Common Stock Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  |  |  |  |  | 7,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Price Per Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  | $ 750 |  |  |  |  |  |  |  |  |  |  |  |  | $ 350 | $ 510 |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Warrant Exercises | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,788,000 |  |  |  |
Stock Issued During Period, Shares, Warrants Exercises (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,000 |  |  |  |
Warrants and Rights Outstanding | $ |  |  |  |  |  | $ 1,671,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Warrants, Percent Change in Fair Value From a 5% Change in Volatility |  |  |  |  |  | 3.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants Issued With the 2018 Common Stock Offering [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  | 1.08 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
The 2014 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Warrant Exercises | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,161,000 |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Warrants Exercises (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 13,481 |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 1,268,000 |  |  |  |  |  |  |  |
Traditional Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  | $ 204.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  | 0.040 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Warrants Exercises (in shares) |  |  |  |  |  |  |  |  |  |  |  | 49,803 |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding | $ |  |  |  | $ 1,139,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Warrants, Percent Change in Fair Value From a 5% Change in Volatility |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  |  |  |  |  |  |  |  | 1,778,700 |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  | 71,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Cashless Exercise (in shares) |  |  |  | 0.028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant Exercised on Cashless Basis Trigger, Underlining Number of Shares (in shares) |  |  |  | 189,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Traditional Warrants [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 1.81 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,200,000 |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50.00 |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.040 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Warrants Exercises (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 67,200 |  |  |  |  |  |  |
Warrants and Rights Outstanding | $ |  |  | $ 1,343,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Warrants, Percent Change in Fair Value From a 5% Change in Volatility |  |  | 7.35% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  | 168,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Cashless Exercise (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.016 |  |  |  |  |  |  |
Warrant Exercised on Cashless Basis Trigger, Share Price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 80.00 |  |  |  |  |  |  |
Class A Warrants [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  | 1.27 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class B Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  | 4,200,000 |  | 4,200,000 | 4,200,000 |  | 4,200,000 |  |  |  |
Class of Warrant or Right, Price Per Warrants or Rights (in dollars per share) | $ / shares |  |  | $ 0.2373 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 25.00 |  | $ 1.00 | $ 25.00 |  | $ 25.00 |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.040 |  |  |  |  |  |  |
Warrants and Rights Outstanding | $ |  |  |  |  |  |  |  |  |  |  |  | $ 609,000 |  | $ 66,000 | $ 609,000 |  | $ 609,000 |  |  |  |
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  | 168,000 |  |  |  |  |  |  |  |  | 168,000 |  | 168,000 | 168,000 |  | 168,000 |  |  |  |
Class B Warrants [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  |  | 4,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  | $ 1.00 |  |  |  |  |  |  |  |  |  |  | $ 1.00 |  |  |  |  |  |  |
Class B Warrants [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  | 1.34 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Warrants, Percent Change in Fair Value From a 5% Change in Volatility |  |  | 14.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
The 2018 Common Stock Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  | 4,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,721,000 |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  |  |  |  |  | $ 750 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Purchase Agreement, Fee Percentage |  |  |  |  |  | 6.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock | $ |  |  |  |  |  | $ 2,805,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 2019 Common Stock Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  | 63,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,289,000 |  |  |  |  |  |
Number of Shares Called by Overallotment Option (in shares) |  |  |  | 9,480 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total | $ |  |  |  | $ 10,480,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  | 3,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
November 2019 Registered Direct Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  | 168,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,642,000 |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  |  | $ 50.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total | $ |  |  | $ 8,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Distribution Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  |  |  |  | 2,693,191 | 4,981 |  |  |  |  |  |  |  |  |  |  |
Common Stock Purchase Agreement, Fee Percentage |  |  |  |  |  |  |  |  | 2.00% | 2.00% |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock | $ |  |  |  |  |  |  |  |  | $ 9,800,000 | $ 2,781,000 |  |  |  |  |  |  |  |  |  |  |
Common Stock Equity Distribution Agreement, Shares Authorized for Issuance, Value | $ |  |  |  |  |  |  |  |  | $ 5,000,000 |  |  |  |  |  |  |  |  | $ 5,000,000 |  |  | $ 14,250,000
Registered Direct Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  |  |  |  |  |  | 36,723,765 |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock | $ |  |  |  |  |  |  |  |  |  |  | $ 112,146,000 |  |  |  |  |  |  |  |  |  |
Registered Direct Offering [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Purchase Agreement, Fee Percentage |  |  |  |  |  |  |  |  |  |  | 6.50% |  |  |  |  |  |  |  |  |  |
Registered Direct Offering [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Purchase Agreement, Fee Percentage |  |  |  |  |  |  |  |  |  |  | 6.25% |  |  |  |  |  |  |  |  |  |
Series D Preferred Stock [Member] | Tankers Family Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues | $ |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Voting Rights Equivalent to Common Shares Per Share (in shares) |  |  |  |  |  |  |  | 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 0.01 |  |  |  |  |  |  |  |  |  |  |  |  |
Series E Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Preferred Stock, Conversion Price, Percentage of VWAP |  |  | 80.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series E Convertible Preferred Stock [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Preferred Stock, Conversion Price (in dollars per share) | $ / shares |  |  | $ 500.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 25 | 25 |  |  | 20 |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition The number of warrants or rights exercised during period. + References No definition available. + Details
Name: | tops_ClassOfWarrantOrRightExercisedDuringPeriod
Namespace Prefix: | tops_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of securities into which each warrant or right may be converted in cashless exercise. + References No definition available. + Details
Name: | tops_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRightCashlessExercise
Namespace Prefix: | tops_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The price per warrant an entity is offering. + References No definition available. + Details
Name: | tops_ClassOfWarrantOrRightPricePerWarrantsOrRights
Namespace Prefix: | tops_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the value of the shares authorized for issuance under a common stock equity distribution agreement. + References No definition available. + Details
Name: | tops_CommonStockEquityDistributionAgreementSharesAuthorizedForIssuanceValue
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee percentage payable under a common stock purchase agreement. + References No definition available. + Details
Name: | tops_CommonStockPurchaseAgreementFeePercentage
Namespace Prefix: | tops_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The conversion price used to calculate the number of common stock to be issued for each share of convertible preferred stock upon conversion. + References No definition available. + Details
Name: | tops_ConvertiblePreferredStockConversionPrice
Namespace Prefix: | tops_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of the lowest daily VWAP of the Company's common stock over a certain amount of consecutive trading days expiring on the trading day immediately prior to the date of delivery of a conversion notice, which is used to determine the conversion price of convertible preferred stock. + References No definition available. + Details
Name: | tops_ConvertiblePreferredStockConversionPricePercentageOfVWAP
Namespace Prefix: | tops_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage change in fair value of warrants from a 5% change in volatility. + References No definition available. + Details
Name: | tops_FairValueOfWarrantsPercentChangeInFairValueFromA5ChangeInVolatility
Namespace Prefix: | tops_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares called by overallotment option. + References No definition available. + Details
Name: | tops_NumberOfSharesCalledByOverallotmentOption
Namespace Prefix: | tops_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of voting rights, expressed in the equivalent number of common shares, that each share of preferred stock carries. + References No definition available. + Details
Name: | tops_PreferredStockVotingRightsEquivalentToCommonSharesPerShare
Namespace Prefix: | tops_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of common shares issued in the period due to exercise of warrants. + References No definition available. + Details
Name: | tops_StockIssuedDuringPeriodSharesWarrantsExercises
Namespace Prefix: | tops_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The share price that will trigger the warrant exercised on cashless basis. + References No definition available. + Details
Name: | tops_WarrantExercisedOnCashlessBasisTriggerSharePrice
Namespace Prefix: | tops_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares underlining the warrants that would trigger the warrant exercised on the cashless basis. + References No definition available. + Details
Name: | tops_WarrantExercisedOnCashlessBasisTriggerUnderliningNumberOfShares
Namespace Prefix: | tops_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
Name: | us-gaap_Dividends
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 + Details
Name: | us-gaap_PreferredStockLiquidationPreference
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromWarrantExercises
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
Name: | us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
Name: | us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tops_WarrantsIssuedWithThe2018CommonStockOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tops_The2014WarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tops_TraditionalWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tops_ClassAWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tops_ClassBWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=tops_The2018CommonStockOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=tops_September2019CommonStockOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=tops_November2019RegisteredDirectOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=tops_EquityDistributionAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=tops_RegisteredDirectOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesDPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=tops_TankersFamilyIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=tops_SeriesEConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NonmonetaryTransactionTypeAxis=tops_ReverseStockSplitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |