Loans and Credit Quality (LHFI table)(Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Loans held for investment
Loans and Leases Receivable, Gross	$ 1,447,460	$ 1,340,111
Net deferred loan fees and discounts	3,366	3,576
Loans held for investment, net of deferred fees and discounts	1,444,094	1,336,535
Allowance for losses on loans held for investment	(27,655)	(27,561)	(26,910)
Loans held for investment, net	1,416,439	1,308,974
Consumer Portfolio Segment [Member]
Loans held for investment
Loans and Leases Receivable, Gross	904,668	810,611
Commercial Portfolio Segment [Member]
Loans held for investment
Loans and Leases Receivable, Gross	$ 542,792	$ 529,500

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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