Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Recurring | Fair Value
Securities available for sale:
Government-sponsored enterprise securities	$ 11,596	$ 34,665
Mortgage-backed securities	146,926	124,105
Corporate bonds	3,813	12,488
Equity securities	5,017	11,368
Total available for sale securities	167,352	182,626
Recurring | Quoted Prices in Market for Identical Assets (Level 1)
Securities available for sale:
Government-sponsored enterprise securities
Mortgage-backed securities
Corporate bonds
Equity securities		399
Total available for sale securities		399
Recurring | Significant Other Observable Inputs (Level 2)
Securities available for sale:
Government-sponsored enterprise securities	11,596	34,665
Mortgage-backed securities	146,926	124,105
Corporate bonds	3,813	12,488
Equity securities	5,017	10,969
Total available for sale securities	167,352	182,227
Recurring | Significant Unobservable Inputs (Level 3)
Securities available for sale:
Government-sponsored enterprise securities
Mortgage-backed securities
Corporate bonds
Equity securities
Total available for sale securities
Nonrecurring | Fair Value
Securities available for sale:
Impaired loans - covered	12,234	21,288
Impaired loans - non-covered	21,021	80,541
Other real estate - covered	47,290	85,272
Other real estate - non-covered	26,285	37,023
Nonrecurring | Quoted Prices in Market for Identical Assets (Level 1)
Securities available for sale:
Impaired loans - covered
Impaired loans - non-covered
Other real estate - covered
Other real estate - non-covered
Nonrecurring | Significant Other Observable Inputs (Level 2)
Securities available for sale:
Impaired loans - covered
Impaired loans - non-covered
Other real estate - covered
Other real estate - non-covered
Nonrecurring | Significant Unobservable Inputs (Level 3)
Securities available for sale:
Impaired loans - covered	12,234	21,288
Impaired loans - non-covered	21,021	80,541
Other real estate - covered	47,290	85,272
Other real estate - non-covered	$ 26,285	$ 37,023