Amount of debt securities categorized neither as held-to-maturity nor trading.

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+ Details

Estimated Fair Value of Financial Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	$ 228,788	$ 226,012
Recurring [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	228,788	226,012
Recurring [Member] \| U.S. Government agencies and corporations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	53,122	56,881
Recurring [Member] \| Mortgage backed securities [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	117,371	107,037
Recurring [Member] \| Collateralized mortgage obligations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	26,541	30,237
Recurring [Member] \| State and political subdivisions [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	31,754	31,857
Level 1 [Member] \| Recurring [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 1 [Member] \| Recurring [Member] \| U.S. Government agencies and corporations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 1 [Member] \| Recurring [Member] \| Mortgage backed securities [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 1 [Member] \| Recurring [Member] \| Collateralized mortgage obligations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 1 [Member] \| Recurring [Member] \| State and political subdivisions [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 2 [Member] \| Recurring [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	228,788	226,012
Level 2 [Member] \| Recurring [Member] \| U.S. Government agencies and corporations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	53,122	56,881
Level 2 [Member] \| Recurring [Member] \| Mortgage backed securities [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	117,371	107,037
Level 2 [Member] \| Recurring [Member] \| Collateralized mortgage obligations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	26,541	30,237
Level 2 [Member] \| Recurring [Member] \| State and political subdivisions [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value	31,754	31,857
Level 3 [Member] \| Recurring [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 3 [Member] \| Recurring [Member] \| U.S. Government agencies and corporations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 3 [Member] \| Recurring [Member] \| Mortgage backed securities [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 3 [Member] \| Recurring [Member] \| Collateralized mortgage obligations [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value
Level 3 [Member] \| Recurring [Member] \| State and political subdivisions [Member]
Assets measured by fair value on a recurring basis
Securities available for sale, at fair value