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Note 7 - Deferred Finance Charges | 12 Months Ended
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Dec. 31, 2017
Notes to Financial Statements |
Deferred Finance Charges [Text Block] |
7. | Deferred Finance Charges
Deferred finance charges amounting to $540,414 and $941,760 as of December 31, 2016 and December 31, 2017, respectively, represent fees paid to the lenders for undrawn facilities, and are presented on the balance sheet under non-current assets.

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- Definition The entire disclosure for deferred finance charges. + References No definition available. + Details
Name: | gass_DeferredFinanceChargesTextBlock
Namespace Prefix: | gass_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration