Share based compensation arrangement by share based payment award award vesting date.

No definition available.

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

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Section 55
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-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

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

- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ 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 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The amount of cash received during the period on settlement of a hedge.

+ References

No definition available.

+ Details

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

- Definition

Amount of dividend income on nonoperating securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

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

- Definition

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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the equity-based award expires, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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Period Type:

- Details

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=gass_TermLoanMember
Namespace Prefix:
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Subsequent Events - Additional Information (Detail) - USD ($)					12 Months Ended
	Apr. 30, 2023	Mar. 31, 2023	Feb. 28, 2023	Feb. 01, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 22, 2022
Subsequent Event [Line Items]
Repayments of debt					$ 83,579,825	$ 173,012,428	$ 41,804,846
Debt instrument face amount								$ 59,400,000
Restricted Stock [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage				50.00%
Restricted Stock [Member] \| Chief Executive Officer [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period				250,000
Share based compensation arrangement by share based payment award award vesting date				Feb. 21, 2024
Restricted Stock [Member] \| Chief Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period				125,000
Restricted Stock [Member] \| Chief Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period				125,000
Restricted Stock [Member] \| Independent Directors [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period				27,000
Restricted Stock [Member] \| Employees and Service Providers [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period				7,000
Share-Based Payment Arrangement [Member] \| Chief Executive Officer [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross				250,000
Share-based payment arrangement, option, exercise price range, exercisable, weighted average exercise price				$ 2.85
Share-based compensation arrangement by share-based payment award, expiration date				Feb. 21, 2024
Share based compensation arrangement by share based payment award award vesting date				Feb. 21, 2033
Share-Based Payment Arrangement [Member] \| Chief Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross				125,000
Share-Based Payment Arrangement [Member] \| Chief Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross				125,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Derivative cash received on hedge		$ 2,000,000
Debt instrument face amount		70,000,000
Subsequent Event [Member] \| MGC Aggressive Inc. [Member]
Subsequent Event [Line Items]
Dividend received	$ 19,300,000
Subsequent Event [Member] \| Term Loan [Member]
Subsequent Event [Line Items]
Repayments of debt		$ 18,500,000	$ 5,900,000
Debt instrument maturity date		January 2028	August 2026