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3. Investment Securities: Held-to-maturity Securities (Details) (Municipal Bonds, USD $) In Thousands, unless otherwise specified | Mar. 31, 2012
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Municipal Bonds |
Held to Maturity Securities Amortized Cost | $ 493
Held to Maturity Securities Gross Unrealized Gains | 49
Held to Maturity Securities Estimated Fair Value | $ 542

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