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Note 11 - Derivatives and Fair Value Disclosures (Details) - Valuation of Assets Measured at Fair Value On a Non-recurring Basis (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 11 - Derivatives and Fair Value Disclosures (Details) - Valuation of Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Fair value of assets measured on a non-recurring basis	$ 1,977,051us-gaap_AssetsFairValueDisclosureNonrecurring	$ 0us-gaap_AssetsFairValueDisclosureNonrecurring
Impairment loss on assets measured at fair value on a non-recurring basis	(6,168,747)us-gaap_AssetImpairmentCharges
Long-lived Assets Held and Used [Member] | Fair Value, Inputs, Level 2 [Member]
Note 11 - Derivatives and Fair Value Disclosures (Details) - Valuation of Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Fair value of assets measured on a non-recurring basis	1,977,051us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = gass_LongLivedAssetsHeldAndUsedMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member
Long-lived Assets Held and Used [Member]
Note 11 - Derivatives and Fair Value Disclosures (Details) - Valuation of Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Fair value of assets measured on a non-recurring basis	1,977,051us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = gass_LongLivedAssetsHeldAndUsedMember
Impairment loss on assets measured at fair value on a non-recurring basis	(6,168,747)us-gaap_AssetImpairmentCharges / us-gaap_FairValueByAssetClassAxis = gass_LongLivedAssetsHeldAndUsedMember
Fair Value, Inputs, Level 2 [Member]
Note 11 - Derivatives and Fair Value Disclosures (Details) - Valuation of Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Fair value of assets measured on a non-recurring basis	$ 1,977,051us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

No definition available.

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