Loans Receivable and Allowance for Loan Losses (Impaired Loans By Loan Portfolio Class) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 17,733	$ 27,594
Impaired Loans with an allowance recorded: Recorded Investment	15,085	13,421
Total Recorded Investment	32,818	41,015
Impaired Loans with no related allowance: Unpaid Principal Balance	22,920	35,069
Impaired Loans with an allowance recorded: Unpaid Principal Balance	21,254	16,645
Total Unpaid Principal Balance	44,174	51,714
Impaired Loans with an allowance recorded: Related Allowance	2,665	2,943
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	12,919	19,231
Impaired Loans with an allowance recorded: Recorded Investment	8,227	6,085
Total Recorded Investment	21,146	25,316
Impaired Loans with no related allowance: Unpaid Principal Balance	13,040	20,000
Impaired Loans with an allowance recorded: Unpaid Principal Balance	8,889	6,085
Total Unpaid Principal Balance	21,929	26,085
Impaired Loans with an allowance recorded: Related Allowance	958	1,077
Construction and Land Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,029	3,153
Impaired Loans with an allowance recorded: Recorded Investment	593	593
Total Recorded Investment	1,622	3,746
Impaired Loans with no related allowance: Unpaid Principal Balance	4,244	6,312
Impaired Loans with an allowance recorded: Unpaid Principal Balance	3,700	3,700
Total Unpaid Principal Balance	7,944	10,012
Impaired Loans with an allowance recorded: Related Allowance	217	70
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,973	3,793
Impaired Loans with an allowance recorded: Recorded Investment	3,263	3,147
Total Recorded Investment	6,236	6,940
Impaired Loans with no related allowance: Unpaid Principal Balance	4,256	7,106
Impaired Loans with an allowance recorded: Unpaid Principal Balance	5,663	3,255
Total Unpaid Principal Balance	9,919	10,361
Impaired Loans with an allowance recorded: Related Allowance	992	861
Owner occupied real estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	144	505
Impaired Loans with an allowance recorded: Recorded Investment	3,002	3,450
Total Recorded Investment	3,146	3,955
Impaired Loans with no related allowance: Unpaid Principal Balance	463	505
Impaired Loans with an allowance recorded: Unpaid Principal Balance	3,002	3,450
Total Unpaid Principal Balance	3,465	3,955
Impaired Loans with an allowance recorded: Related Allowance	498	860
Consumer and Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	668	912
Impaired Loans with an allowance recorded: Recorded Investment	0	146
Total Recorded Investment	668	1,058
Impaired Loans with no related allowance: Unpaid Principal Balance	917	1,146
Impaired Loans with an allowance recorded: Unpaid Principal Balance	0	155
Total Unpaid Principal Balance	917	1,301
Impaired Loans with an allowance recorded: Related Allowance	$ 0	$ 75