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Investment Securities: Schedule of Temporarily Impaired Securities, Fair Value and Unrealized losses (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Trust preferred
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 1,127	$ 1,166
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(1,847)	(1,808)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,127	1,166
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(1,847)	(1,808)
US Government Agencies Debt Securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		4,999
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		4,999
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		(1)
InvestmentSecuritiesMember
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		4,999
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		1,166
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		(1,808)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		6,165
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		$ (1,809)

X

- Definition

Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.

+ References

No definition available.

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- Definition

Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities.

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-Publisher FASB

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Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for securities categorized neither as held-to-maturity nor trading securities.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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