Related Party Transactions (Details Textuals) (USD $)	0 Months Ended	9 Months Ended	12 Months Ended
	May 20, 2014	Jun. 19, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Madison Park, LLC [Member]
Related Party Transaction [Line Items]
Period of advisory services agreements			1 year	1 year	1 year
Expenses from transactions with related party		$ 5,200,000	$ 7,200,000	$ 7,200,000	$ 6,000,000
Due to Related Parties			0	0
Period for termination notice	30 days
LPG Limited (HK) [Member]
Related Party Transaction [Line Items]
Period of advisory services agreements			1 year	1 year
Expenses from transactions with related party			$ 259,000	$ 480,000