Other Comprehensive Income (Accumulated Other Comprehensive Income) (Details) (USD $)	Jun. 30, 2012		Mar. 31, 2012
Other Comprehensive Income [Abstract]
Net unrealized holding gains on available-for-sale securities, net of taxes	$ 618,000	[1]	$ 458,000	[1]
Unrecognized director fee plan benefits, net of tax	1,000		1,000
Total	619,000		459,000
Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Debt Securities	$ 113,000		$ 82,000

[1] (1) The June 30 and March 31, 2012 ending balance includes $113,000 and $82,000, respectively of unrealized losses in which other-than-temporary impairment has been recognized.