Fair Value Of Financial Instruments (Fair Value Of Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 47,459	$ 37,812	$ 49,333	$ 74,026
Securities available for sale	494,822	511,751
Securities held to maturity	481	558
FHLB stock	8,145	8,630
FHLB stock		8,630
Loans, net of allowance for loan losses	1,014,462	1,017,007
Total assets	1,601,765	1,611,869
Deposits	1,240,146	1,177,880
Short-term debt	52,000	0
Securities sold under agreement to repurchase	153,700	262,527
Other long-term debt	12,522	22,562
Junior subordinated debentures issued to unconsolidated subsidiary trust	20,619	20,619
Total liabilities	1,487,706	1,502,332
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	47,459	37,812
Securities available for sale	494,822	511,751
Securities held to maturity	481	558
FHLB stock	8,145	8,630
Loans, net of allowance for loan losses	1,014,462	1,017,007
Interest rate contract-cash flow hedge	488	207
Accrued interest receivable	4,131	5,121
Total assets	1,569,988	1,581,086
Deposits	1,240,146	1,177,880
Short-term debt	52,000	0
Securities sold under agreement to repurchase	153,700	262,527
Other long-term debt	12,522	22,562
Junior subordinated debentures issued to unconsolidated subsidiary trust	20,619	20,619
Interest rate contract-cash flow hedge	1,767	1,613
Accrued interest payable	295	282
Total liabilities	1,481,049	1,485,483
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	47,459	37,812
Securities available for sale	494,822	511,751
Securities held to maturity	537	624
FHLB stock	8,145	8,630
Loans, net of allowance for loan losses	1,035,189	1,035,131
Interest rate contract-cash flow hedge	488	207
Accrued interest receivable	4,131	5,121
Total assets	1,590,771	1,599,276
Deposits	1,243,014	1,181,066
Short-term debt	52,000	0
Securities sold under agreement to repurchase	153,700	263,062
Other long-term debt	13,050	23,594
Junior subordinated debentures issued to unconsolidated subsidiary trust	15,376	15,268
Interest rate contract-cash flow hedge	1,767	1,613
Accrued interest payable	295	282
Total liabilities	1,479,202	1,484,885
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	47,459	37,812
Securities available for sale	0	0
Securities held to maturity	0	0
FHLB stock	0	0
Loans, net of allowance for loan losses	0	0
Interest rate contract-cash flow hedge	0	0
Accrued interest receivable	4,131	5,121
Total assets	51,590	42,933
Deposits	892,719	829,632
Short-term debt	0	0
Securities sold under agreement to repurchase	0	0
Other long-term debt	0	0
Junior subordinated debentures issued to unconsolidated subsidiary trust	0	0
Interest rate contract-cash flow hedge	0	0
Accrued interest payable	295	282
Total liabilities	893,014	829,914
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Securities available for sale	494,822	511,751
Securities held to maturity	537	624
FHLB stock	8,145	8,630
Loans, net of allowance for loan losses	0	0
Interest rate contract-cash flow hedge	488	207
Accrued interest receivable	0	0
Total assets	503,992	521,212
Deposits	350,295	351,434
Short-term debt	52,000	0
Securities sold under agreement to repurchase	153,700	263,062
Other long-term debt	13,050	23,594
Junior subordinated debentures issued to unconsolidated subsidiary trust	15,376	15,268
Interest rate contract-cash flow hedge	1,767	1,613
Accrued interest payable	0	0
Total liabilities	586,188	654,971
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Securities available for sale	0	0
Securities held to maturity	0	0
FHLB stock	0	0
Loans, net of allowance for loan losses	1,035,189	1,035,131
Interest rate contract-cash flow hedge	0	0
Accrued interest receivable	0	0
Total assets	1,035,189	1,035,131
Deposits	0	0
Short-term debt	0	0
Securities sold under agreement to repurchase	0	0
Other long-term debt	0	0
Junior subordinated debentures issued to unconsolidated subsidiary trust	0	0
Interest rate contract-cash flow hedge	0	0
Accrued interest payable	0	0
Total liabilities	$ 0	$ 0