Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Suncore	Jun. 30, 2013 Suncore
Goodwill [Line Items]
Goodwill	$ 20,384,000	$ 20,384,000
Asset retirement obligations	5,263,000	5,053,000
Equity method investment, ownership percentage					40.00%
Equity method investment, purchase price				$ 4,800,000
Nonvested restricted stock awards excluded from computation of basic loss per share			200,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	1,936,000	2,391,000	3,999,000