XML 19 R70.htm IDEA: XBRL DOCUMENT
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Note 19 - Subsequent Events (Details) (USD $) | 1 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 26, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Apr. 22, 2015 | Jan. 09, 2015 | Mar. 12, 2015 | Apr. 14, 2015 | Mar. 27, 2015 | Apr. 15, 2015 | Feb. 26, 2015
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) | $ 6.29 us-gaap_TreasuryStockAcquiredAverageCostPerShare |  |  |  | $ 4.05 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 5.21 us-gaap_TreasuryStockAcquiredAverageCostPerShare |  |  |  |  |  |  |
Gain (Loss) on Disposition of Property Plant Equipment |  |  |  | $ 1,372,409 us-gaap_GainLossOnSaleOfPropertyPlantEquipment |  |  |  |  |  |  |  |  |
Repayments of Long-term Debt |  | 75,268,462 us-gaap_RepaymentsOfLongTermDebt | 37,696,190 us-gaap_RepaymentsOfLongTermDebt | 48,965,869 us-gaap_RepaymentsOfLongTermDebt |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Debt |  | 81,950,000 us-gaap_ProceedsFromIssuanceOfDebt |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | LPG Vessels [Member] | Three of Three Tranches [Member] | First Facility Agreement with a Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  |  |  |  | 15,750,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gass_FirstFacilityAgreementWithABankMember / us-gaap_DebtInstrumentAxis = gass_ThreeOfThreeTranchesMember / us-gaap_OtherCommitmentsAxis = gass_LPGVesselsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |
Subsequent Event [Member] | Eco Lucidity Vessel [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment Installment for Vessel Delivery |  |  |  |  |  |  |  | 6,732,334 gass_PaymentInstallmentForVesselDelivery / us-gaap_PropertyPlantAndEquipmentByTypeAxis = gass_EcoLucidityVesselMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Subsequent Event [Member] | The Gas Kaizen and the Gas Crystal Vessels [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant, and Equipment, Salvage Value |  |  |  |  |  |  |  |  | 2,117,684 us-gaap_PropertyPlantAndEquipmentSalvageValue / us-gaap_PropertyPlantAndEquipmentByTypeAxis = gass_TheGasKaizenAndTheGasCrystalVesselsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
Gain (Loss) on Disposition of Property Plant Equipment |  |  |  |  |  |  |  |  | 34,751 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = gass_TheGasKaizenAndTheGasCrystalVesselsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
Subsequent Event [Member] | Eco Enigma Vessel [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment Installment for Vessel Delivery |  |  |  |  |  |  |  |  |  | 14,625,000 gass_PaymentInstallmentForVesselDelivery / us-gaap_PropertyPlantAndEquipmentByTypeAxis = gass_EcoEnigmaVesselMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Subsequent Event [Member] | Term Loan 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Long-term Debt |  |  |  |  |  |  |  |  |  |  | 13,500,000 us-gaap_RepaymentsOfLongTermDebt / us-gaap_DebtInstrumentAxis = gass_TermLoan2Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 19 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Additional Amount of Stock Repurchase Program Authorized Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 20,000,000 gass_AdditionalAmountOfStockRepurchaseProgramAuthorizedAmount / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Treasury Stock, Shares, Acquired (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 926,074 us-gaap_TreasuryStockSharesAcquired / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 6.08 us-gaap_TreasuryStockAcquiredAverageCostPerShare / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |

X
- Definition Represents the additional amount for the amount of stock repurchase plan authorized. + References No definition available. + Details
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- Details
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X
- Definition This item represents a delivery installment for vessels delivered. + References No definition available. + Details
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Namespace Prefix: | gass_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + 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 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition The estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose). + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
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Data Type: | xbrli:sharesItemType
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