XML 64 R48.htm IDEA: XBRL DOCUMENT v3.21.1

Advances for Vessel Under Construction and Acquisitions - Additional Information (Detail) - USD ($)	Feb. 05, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments in and Advances to Affiliates [Line Items]
Advances for vessel under construction and acquisitions		$ 6,539,115	$ 2,988,903	$ 0
Eco Blizzard [Member] | Subsequent Event [Member]
Investments in and Advances to Affiliates [Line Items]
Advances for vessel under construction and acquisitions	$ 23,152,125

X

- Definition

Advances for vessels under construction and acquisitions.

+ References

No definition available.

+ Details

Name:	gass_AdvancesForVesselsUnderConstructionAndAcquisitions
Namespace Prefix:	gass_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_InvestmentsInAndAdvancesToAffiliatesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=gass_EcoBlizzardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: