Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 3,528	$ 3,390
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	480	615
Depreciation, amortization and accretion, net	1,268	1,463
Stock-based compensation expense	78	55
Gains on investment securities, net	(353)	(384)
(Gain) Losses on sales of other real property owned, net	37	(3)
Loss on write down of fixed assets	0	1
Gains on sale of loans held for sale, net	(277)	(239)
Decrease in accrued interest receivable	871	1,014
Decrease in accrued interest payable	(33)	(36)
Origination of loans held for sale	(19,900)	(17,934)
Proceeds from sale of loans held for sale	19,571	18,415
(Increase) decrease in other assets	1,547	(2,776)
Increase in other liabilities	1,192	1,645
Net cash provided by operating activities	8,009	5,226
Cash flows from investing activities:
Proceeds from maturities of certificates of deposit investments	1,241	2,428
Purchases of certificates of deposit investments	0	(1,241)
Proceeds from sales of securities available-for-sale	15,304	11,114
Proceeds from maturities of securities available-for-sale	54,744	82,122
Purchases of securities available-for-sale	(99,121)	(97,129)
Net decrease in loans	8,237	18,555
Purchases of premises and equipment	(230)	(397)
Proceeds from sales of other real property owned	165	1,509
Net cash (used in) provided by investing activities	(19,660)	16,961
Cash flows from financing activities:
Net increase in deposits	36,104	62,893
Increase in repurchase agreements	(37,112)	(23,337)
Repayment of long term FHLB advances	0	(10,000)
Proceeds from issuance of common stock	335	338
Purchase of treasury stock	(1,158)	(617)
Dividends paid on preferred stock	(2,026)	0
Dividends paid on common stock	0	(948)
Net cash (used in) provided by financing activities	(3,857)	28,329
Increase (decrease) in cash and cash equivalents	(15,508)	50,516
Cash and cash equivalents at beginning of period	82,712	73,102
Cash and cash equivalents at end of period	67,204	123,618
Cash paid during the period for:
Interest	1,031	1,931
Income taxes	675	2,116
Supplemental disclosures of noncash investing and financing activities
Loans transferred to other real estate owned	197	195
Dividends reinvested in common stock	0	312
Net tax benefit related to option and deferred compensation plans	$ 84	$ 58