Derivative Financial Instruments (Details) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 30, 2012
Fair value of derivative financial instruments
Fair value of derivative financial instrument in other assets	$ 5,000		$ 5,000		$ 10,000
Fair value of derivative financial instrument in Accounts payable and accrued liabilities	7,000		7,000		104,000
Gain (loss) on derivatives not designated in hedging relationships recorded directly in earnings	1,200		(4,500)
Effect of derivative financial instrument on the consolidated statements of comprehensive (loss) income
Amount of gain (loss) recognized on derivative in Other Comprehensive Income	59,000	(72,000)	69,000	(100,000)
Amount of loss reclassified from Accumulated other comprehensive income into interest expense	(9,000)	(9,000)	(28,000)	(9,000)
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 (loss) income as an increase to interest expense	34,000		34,000
Credit-risk-related Contingent Features
Fair value of the derivative in a net liability position	5,000		5,000
Termination value for settlement of obligation	5,000		5,000
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%