Offsetting Assets and Liabilities - Offsetting of Assets (Details) (USD $)	Mar. 31, 2014
Offsetting Assets [Line Assets]
Gross Amount Of Recognized Assets	$ 1,549,000
Gross Amount Of Assets Offset In The Balance Sheet	0
Net Amount Of Assets Presented In The Balance Sheet	1,549,000
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	(1,505,000)
Net Amount Of Assets	44,000
Swaption [Member}
Offsetting Assets [Line Assets]
Gross Amount Of Recognized Assets	1,549,000
Gross Amount Of Assets Offset In The Balance Sheet	0
Net Amount Of Assets Presented In The Balance Sheet	1,549,000
Gross Amounts Of Financial Instruments Received Not Offset In Balance Sheet	0
Gross Amounts Of Cash Collateral Received Not Offset In Balance Sheet	(1,505,000)
Net Amount Of Assets	$ 44,000