Derivative Financial Instruments (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2012
Fair value of derivative financial instruments
Fair value of derivative financial instrument in Other Assets	$ 4,000		$ 4,000		$ 10,000
Fair value of derivative financial instrument in Accounts payable and accrued liabilities	78,000		78,000		104,000
Changes in fair value of derivatives not designated in hedging relationships recorded directly in earnings	1,110		5,700
Effect of derivative financial instrument on the consolidated statements of comprehensive (loss) income
Amount of loss recognized on derivative in Other Comprehensive Income	9,000	27,000	11,000	27,000
Amount of loss reclassified from Accumulated Other Comprehensive Income into Interest Expense	(9,000)		(18,000)
Gain or loss recognized related to hedge ineffectiveness	0	0	0	0
Gain or loss recognized related to amounts excluded from effectiveness testing	0	0	0	0
Estimated amount to be reclassified from Accumulated Other Comprehensive Income (Loss) as an increase to interest expense	35,000		35,000
Credit-risk-related Contingent Features
Fair value of the derivative in a net liability position	79,000		79,000
Termination value for settlement of obligation	79,000		79,000
Derivative designated as a cash flow hedge | Interest Rate Swap
Interest Rate Derivatives
Notional Amount	1,908,000		1,908,000
Rate (as a percent)	5.25%		5.25%
Not designated as hedges | Interest Rate Caps
Interest Rate Derivatives
Notional Amount	$ 24,700,000		$ 24,700,000
Rate (as a percent)	1.00%		1.00%