Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Recurring | Fair Value
Securities available for sale:
Government-sponsored enterprise securities	$ 20,614	$ 34,665
Mortgage-backed securities	128,533	124,105
Corporate bonds	3,857	12,488
Equity securities	8,403	11,368
Total available for sale securities	161,407	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	454	398
Total available for sale securities	454	398
Recurring | Significant Other Observable Inputs (Level 2)
Securities available for sale:
Government-sponsored enterprise securities	20,614	34,665
Mortgage-backed securities	128,533	124,105
Corporate bonds	3,857	12,488
Equity securities	7,949	10,969
Total available for sale securities	160,953	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	55,564	55,690
Impaired loans - non-covered	107,935	85,286
Other real estate - covered	58,367	85,272
Other real estate - non-covered	38,065	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		55,690
Impaired loans - non-covered		85,286
Other real estate - covered	58,367	85,272
Other real estate - non-covered	38,065	37,023
Nonrecurring | Significant Unobservable Inputs (Level 3)
Securities available for sale:
Impaired loans - covered	55,564
Impaired loans - non-covered	107,935
Other real estate - covered
Other real estate - non-covered