Schedule of Loans Renegotiated in Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 notes		Dec. 31, 2012
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Loans Renegotiated in Troubled Debt Restructurings	$ 75,229		$ 76,597
Loans Renegotiated in Troubled Debt Restructurings, Non-Accrual Loans	39,442		44,665
Loans Renegotiated in Troubled Debt Restructurings, Accrual Loans	35,787		31,932
Number of Notes	15,000
Principle Balance at Restructure Date	6,617
Number of Notes	0
Balance	650
Interest only period
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	170
Extension of terms or maturity
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	567
Interest rate adjustment
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	5,610
Other
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	270	[1]
Commercial real estate
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Number of Notes	11,000
Principle Balance at Restructure Date	6,037
Commercial real estate | Interest only period
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	120
Commercial real estate | Extension of terms or maturity
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	389
Commercial real estate | Interest rate adjustment
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	5,345
Commercial real estate | Other
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	183	[1]
Residential real estate
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Number of Notes	0
Balance	278
Total real estate loans
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Number of Notes	11,000
Principle Balance at Restructure Date	6,037
Total real estate loans | Interest only period
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	120
Total real estate loans | Extension of terms or maturity
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	389
Total real estate loans | Interest rate adjustment
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	5,345
Total real estate loans | Other
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	183	[1]
Commercial
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Number of Notes	4,000
Principle Balance at Restructure Date	580
Number of Notes	1
Balance	372
Commercial | Interest only period
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	50
Commercial | Extension of terms or maturity
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	178
Commercial | Interest rate adjustment
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	265
Commercial | Other
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Principle Balance at Restructure Date	$ 87

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