XML 58 R45.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 3 - Transactions With Related Parties (Details Textual) |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 25, 2016 USD ($) | May 26, 2014 EUR (€) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Due to Related Parties, Current, Total |  |  | $ 14,209,624 | $ 7,890,933 |
Revenue from Related Parties |  |  | 1,973,643 | $ 7,592,784 | $ 9,814,000
The Manager [Member] |  |  |  |  |
Management Fee, Per Day, Per Vessel |  |  | 440 |  |
Management Fee, Per Day, Per Vessel, Under Bareboat Charter |  |  | $ 125 |  |
Vessel Brokerage Commission Percentage |  |  | 1.25% | 1.25% | 1.25%
Sales and Purchase Broker Commission Fee, Percentage |  |  | 1.00% |  |
Due to Related Parties, Current, Total |  |  | $ 14,209,624 | $ 7,890,933 |
The Manager [Member] | Brokerage Commission Fees [Member] | Voyage Expenses - Related Party [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 1,912,505 | 1,772,240 | $ 1,725,683
The Manager [Member] | Management Fees [Member] | Management Fees - Related Party [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 7,205,490 | 7,346,180 | 6,452,145
The Manager [Member] | Additional Charge Per Day When Visits Exceed Five Days in Twelve Month Period [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 500 |  |
The Manager [Member] | Superintendent Fees [Member] | Vessels' Operating Expenses - Related Party [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 125,500 | 172,000 | 245,000
The Manager [Member] | Commission Fees Incurred and Capitalized to the Cost of Vessels [Member] |  |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  | 525,978 | 421,639 | 1,925,563
The Manager [Member] | Commission Expense Related to the sale and Leaseback of Vessels [Member] | Net Gain on Sale of Vessels [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 119,900 | 13,711 | 21,177
The Manager [Member] | Reimbursed Compensation [Member] | General and Administrative Expense [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 1,127,307 | 1,114,130 | 1,077,698
The Manager [Member] | Amounts Paid in Connection to Charter Agreements for the Vessels' Operating Expense [Member] | Vessels' Operating Expenses - Related Party [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 675,408 | 2,969,843 | 3,932,042
Affiliated Company of the Manager [Member] | Office Space Rent [Member] | General and Administrative Expense [Member] |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 82,192 | 72,907 | 72,753
Emihar Petroleum Inc [Member] |  |  |  |  |
Revenue from Related Parties |  |  | 1,973,643 | 7,592,784 | 9,814,000
Accounts Receivable, Related Parties |  |  | 0 | 115,599 |
Deferred Revenue |  |  | 0 | 232,774 |
Brave [Member] | Vessel Construction Fee Per Vessel [Member] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 490,000 | € 390,000 |  |  |
Brave [Member] | Capitalized Construction Supervision Fees [Member] |  |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  |  | $ 854,022 | $ 1,726,265
Brave [Member] | Supervision Fee [Member] |  |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  | $ 535,864 |  |

X
- Definition Fixed management fee per day per vessel for vessels under time or voyage charters. + References No definition available. + Details
Name: | gass_ManagementFeePerDayPerVessel
Namespace Prefix: | gass_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fixed management fee per day per vessel for vessels under bareboat charters. + References No definition available. + Details
Name: | gass_ManagementFeePerDayPerVesselUnderBareboatCharter
Namespace Prefix: | gass_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sales and purchase broker commission fee percentage of the gross sale or purchase price of vessels or companies. + References No definition available. + Details
Name: | gass_SalesAndPurchaseBrokerCommissionFeePercentage
Namespace Prefix: | gass_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents the commission as a percentage paid to Managers on charter hire agreements. + References No definition available. + Details
Name: | gass_VesselBrokerageCommissionPercentage
Namespace Prefix: | gass_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an unclassified balance sheet, amount of receivables arising from transactions with related parties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(3)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 5: 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(3)(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_AccountsReceivableRelatedParties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References No definition available. + Details
Name: | us-gaap_DeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 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 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DueToRelatedPartiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 + Details
Name: | us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=114873854&loc=SL114874292-224272 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
Name: | us-gaap_RevenueFromRelatedParties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gass_TheManagerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_BrokerageCommissionFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=gass_VoyageExpensesRelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_ManagementFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=gass_ManagementFeesRelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_AdditionalChargePerDayWhenVisitsExceedFiveDaysInTwelveMonthPeriodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_SuperintendentFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=gass_VesselsOperatingExpensesRelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_CommissionFeesIncurredAndCapitalizedToTheCostOfVesselsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_CommissionExpenseRelatedToTheSaleAndLeasebackOfVesselsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=gass_NetGainOnSaleOfVesselsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_ReimbursedCompensationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_AmountsPaidInConnectionToCharterAgreementsForTheVesselsOperatingExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gass_AffiliatedCompanyOfTheManagerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_OfficeSpaceRentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gass_EmiharPetroleumIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gass_BraveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_VesselConstructionFeePerVesselMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_CapitalizedConstructionSupervisionFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gass_SupervisionFeeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |