XML 74 R60.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Note 15 - Voyage Expenses and Vessel Operating Expenses (Detail) - Voyage Expenses (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Voyage expenses | $ 12,703,750 | $ 17,829,220 | $ 13,680,008
Port Expenses [Member] |  |  |
Voyage expenses | 1,749,565 | 2,221,470 | 2,652,235
Bunkers [Member] |  |  |
Voyage expenses | 7,253,583 | 11,554,144 | 7,868,829
Commissions [Member] |  |  |
Voyage expenses | 3,304,220 | 3,272,922 | 3,009,512
Other Voyage Expenses [Member] |  |  |
Voyage expenses | $ 396,382 | $ 780,684 | $ 149,432

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | gass_VoyageExpensesIncludingRelatedParty
Namespace Prefix: | gass_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration