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

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Term of the interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Face amount of financial liability at time of sale and leaseback agreement.

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Monthly bareboat rate charged for the vessel to the lessee under a finance lease.

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Purchase price of vessel at the end of the bareboat period by the lessee under a finance lease.

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Daily bareboat rate charged for the vessel by the lessor under a sales-type lease.

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Number of installment payments to be paid for the construction price of a new vessel.

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Percentage of purchase price of vessel paid upon signing of contract.

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Percentage of purchase price of vessel payable over fourteen months after signing agreement.

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Percentage of purchase price of vessel payable upon delivery of the vessel.

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Period after signing bareboat charter agreement to pay an additional down payment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Purchase price of long-lived, physical assets used in the normal conduct of business and not intended for resale.

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Sales price of long-lived, physical asset used in the normal conduct of business.

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Fixed monthly fees paid for arranging (directly or by subcontracting) for the crewing of the vessels, the day-to-day operations, inspections, maintenance, repairs, drydocking, purchasing, insurance and claims handling of vessels.

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Period after signing contract to pay 45% of the purchase price of the vessel in 5 installments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum weight of cargo and supplies that a vessel can carry, excluding the ship's own empty weight.

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Aggregate dividends paid during the period for each share of common stock outstanding.

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

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

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Amount of the required periodic payments applied to principal.

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Indicates type of variable interest rate on debt instrument.

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Date the declared dividend will be paid, in YYYY-MM-DD format.

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Date the dividend to be paid was declared, in YYYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

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Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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Lease term for sale and leaseback transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Number of shares authorized for issuance under share-based payment arrangement.

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Subsequent Events (Details)															3 Months Ended	12 Months Ended
Subsequent Events (Details)	Sep. 08, 2027 shares	Mar. 08, 2027 shares	Feb. 25, 2027 USD ($)	Sep. 07, 2026 shares	Mar. 09, 2026 USD ($) Installment	Mar. 06, 2026 $ / shares shares	Mar. 02, 2026 USD ($) Installment	Feb. 26, 2026 USD ($) Installment t	Feb. 25, 2026 USD ($) t	Feb. 13, 2026 $ / shares	Feb. 06, 2026 USD ($)	Jan. 30, 2026 USD ($) Installment t	Jan. 09, 2026 $ / shares	Jan. 07, 2026 USD ($)	Mar. 31, 2029 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares	Mar. 10, 2026 USD ($)	Nov. 28, 2025 USD ($)	Nov. 11, 2025 $ / shares
Subsequent Events [Abstract]
Payment of long-term debt																$ 123,333,000	$ 73,038,000	$ 88,742,000
Dividend paid per share (in dollars per share) \| $ / shares																$ 0.33	$ 0.76	$ 0.1
Down payment received for sale of vessel																$ 21,590,000	$ 0	$ 23,910,000
Down payment advanced																$ 35,587,000	$ 70,651,000	$ 314,000
Equity Incentive Plan [Member] \| Restricted Stock [Member]
Subsequent Events [Abstract]
Shares granted (in shares) \| shares																528,200	502,500
Grant date fair value (in dollars per share) \| $ / shares																$ 7.35	$ 8.42
Shares vested (in shares) \| shares																536,800	856,314
Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Awarded March 6, 2026 [Member] \| Plan [Member]
Subsequent Events [Abstract]
Shares vested (in shares) \| shares	144,400	108,300		168,750
Newbuilding 1 [Member]
Subsequent Events [Abstract]
Purchase price																				$ 75,750,000
Newbuilding 3 [Member] \| Plan [Member]
Subsequent Events [Abstract]
Down payment advanced			$ 7,750,000												$ 3,875,000
Regular Quarterly Dividend for Q3-2025 [Member]
Subsequent Events [Abstract]
Dividend payable, date to be paid																Jan. 09, 2026
Dividend payable per share (in dollars per share) \| $ / shares																					$ 0.13
Dividend payable, date of record																Dec. 29, 2025
Dividend payable, date declared																Nov. 11, 2025
Subsequent Event [Member] \| Equity Incentive Plan [Member]
Subsequent Events [Abstract]
Shares reserved for issuance (in shares) \| shares						600,000
Subsequent Event [Member] \| Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Awarded March 6, 2026 [Member]
Subsequent Events [Abstract]
Shares granted (in shares) \| shares						554,100
Grant date fair value (in dollars per share) \| $ / shares						$ 13.28
Shares vested (in shares) \| shares						132,650
Subsequent Event [Member] \| Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Awarded March 6, 2026 [Member] \| Non-Executive Members of Board of Directors and Executive Officers [Member]
Subsequent Events [Abstract]
Shares granted (in shares) \| shares						313,500
Subsequent Event [Member] \| Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Awarded March 6, 2026 [Member] \| Non-Executive Employees and Non-Employee [Member]
Subsequent Events [Abstract]
Shares granted (in shares) \| shares						240,600
Subsequent Event [Member] \| Partnership Sale and Leaseback Agreement [Member]
Subsequent Events [Abstract]
Face amount							$ 26,500,000
Term of charter contract							6 years 6 months
Number of payment installments \| Installment							26
Frequency of periodic payment							quarterly
Installment payment							$ 779,000
Term of variable rate							3 months
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]							Term SOFR [Member]
Margin on variable rate							1.85%
Subsequent Event [Member] \| Newbuilding 1 Sale and Leaseback Agreement [Member]
Subsequent Events [Abstract]
Face amount					$ 57,750,000
Term of charter contract					8 years
Number of payment installments \| Installment					32
Frequency of periodic payment					quarterly
Installment payment					$ 670,000
Term of variable rate					3 months
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]					Term SOFR [Member]
Margin on variable rate					1.85%
Purchase obligation					$ 10,000,000
Subsequent Event [Member] \| Newbuilding 1 [Member]
Subsequent Events [Abstract]
Payment of long-term debt														$ 11,175,000
Subsequent Event [Member] \| Newbuilding 4 [Member]
Subsequent Events [Abstract]
Vessel capacity \| t												181,500
Purchase price												$ 75,159,000
Number of purchase price payment installments \| Installment												5
Percentage of purchase price payable over next 14 months												45.00%
Term for payment of 45% of purchase price												14 months
Percentage of purchase price payable upon delivery of vessel												55.00%
Subsequent Event [Member] \| Dukeship [Member] \| Related Party [Member] \| United [Member]
Subsequent Events [Abstract]
Term of bareboat charter agreement											18 months
Down payment received for sale of vessel											$ 5,500,000
Daily bareboat rate											9,500
Purchase obligation											22,050,000
Subsequent Event [Member] \| Newbuilding 3 [Member]
Subsequent Events [Abstract]
Vessel capacity \| t									181,500
Term of bareboat charter agreement									10 years
Down payment advanced									$ 3,875,000
Period after signing bareboat charter agreement to pay additional down payment									1 year
Monthly bareboat rate									$ 295,000
Term of variable rate									1 month
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]									Term SOFR [Member]
Margin on variable rate									2.20%
Purchase price of vessel									$ 26,970,000
Subsequent Event [Member] \| Newbuilding 2 [Member]
Subsequent Events [Abstract]
Vessel capacity \| t								181,500
Purchase price								$ 80,100,000
Number of purchase price payment installments \| Installment								2
Percentage of purchase price paid upon signing of contract								20.00%
Percentage of purchase price payable upon delivery of vessel								80.00%
Subsequent Event [Member] \| Squireship [Member] \| Related Party [Member] \| United [Member]
Subsequent Events [Abstract]
Sales price																			$ 29,500,000
Subsequent Event [Member] \| Seanergy Shipmanagement [Member] \| Dukeship [Member] \| Related Party [Member] \| United [Member]
Subsequent Events [Abstract]
Fixed management fee per month											$ 14,000
Subsequent Event [Member] \| Regular Quarterly Dividend for Q3-2025 [Member]
Subsequent Events [Abstract]
Dividend paid per share (in dollars per share) \| $ / shares													$ 0.13
Subsequent Event [Member] \| Regular Quarterly Dividend for Q4-2025 [Member]
Subsequent Events [Abstract]
Dividend payable, date to be paid										Apr. 10, 2026
Dividend payable per share (in dollars per share) \| $ / shares										$ 0.2
Dividend payable, date of record										Mar. 27, 2026
Dividend payable, date declared										Feb. 13, 2026