Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flow from Operating Activities
Net income	$ 22,163	$ 15,885	$ 9,765
Ajustments to reconcile net income to net cash provided by operating activities:
Depreciation	6,263	6,492	6,801
Amortization of intangible assets	1,549	1,651	1,651
Provision for loan losses	5,550	12,700	22,850
Deferred tax expense	1,156	2,215	271
Employee benefit plan expense	223	191	178
Stock-based compensation expense	946	794	658
Losses / impairments of foreclosed assets	1,491	1,149	1,147
Losses on mortgage indemnifications and repurchases	593	232	2,265
Gains on sale of premises and equipment	(68)	(84)	(199)
Gain on sale of financial center	0	0	(748)
Gains on sale of securities available for sale	(528)	(509)	(1,268)
Mortgage banking-related fees	(8,909)	(8,186)	(9,388)
Proceeds from sale of mortgage loans	307,640	424,368	526,618
Origination of mortgage loans for sale	(294,482)	(406,487)	(524,787)
Amortization of securities premiums and accretion of discounts, net	1,914	1,593	1,672
Income on bank owned life insurance	(1,769)	(1,298)	(1,296)
Changes in assets and liabilites:
Decrease in accrued interest receivable	643	409	142
Decrease in other assets	2,645	7,995	6,311
Decrease in accrued interest payable	(440)	(156)	(1,348)
Increase (decrease) in other liabilities	1,505	1,364	(4,210)
Net cash provided by operating activities	48,085	60,318	37,085
Cash Flow from Investing Activities
Proceeds from maturities, calls and principal payments of securities available for sale	134,405	129,617	127,279
Proceeds from sales of securities available for sale	55,362	13,836	29,469
Purchase of securities available for sale	(265,421)	(231,318)	(159,561)
Proceeds from maturities and principal payments of securities held to maturity	0	0	425
Net (increase) decrease in loans	(60,653)	43,226	47,732
Purchase of bank owned life insurance	0	(10,000)	0
Proceeds from sale of premises and equipment	1,469	145	1,014
Purchase of premises and equipment	(6,685)	(3,680)	(3,333)
Proceeds from sale of foreclosed assets	5,906	8,030	6,516
Net cash (used) provided by investing activities	(135,617)	(50,144)	49,541
Cash Flow from Financing Activities
Net increase in demand, money market and savings deposits	171,427	35,578	116,613
Net decrease in certificates of deposits	(82,703)	(26,082)	(166,631)
Principal payments on Federal Home Loan Bank advances	(5,000)	(25,000)	(45,000)
Exercise of stock options	(209)	310	511
Repurchase of preferred stock issued to the U.S. Treasury	0	(30,000)	0
Cash dividends paid	(6,004)	(4,896)	(5,159)
Net cash provided (used) by financing activities	77,511	(50,090)	(99,666)
Decrease in cash and cash equivalents	(10,021)	(39,916)	(13,040)
Cash and Cash Equivalents
Beginning	99,970	139,886	152,926
Ending	89,949	99,970	139,886
Supplemental Disclosures of Cash Flow Information
Cash Payments for Interest	18,919	28,839	39,816
Cash Payments for Income Taxes	6,569	2,310	2,300
Foreclosed assets acquired in settlement of loans	$ 4,565	$ 7,067	$ 14,052