Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 19,925	$ 17,507	$ 13,926
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	886	914	983
Provision for loan losses	350	325	2,448
Provision for deferred taxes	1,739	1,912	3,406
Stock-based compensation expense	59	39	35
Net other-than-temporary impairment losses	652	870	342
Net gains on sales of available-for-sale securities	(2,363)	(2,882)	(3,976)
Net gains on sales of loans held for sale	(294)	(484)	(251)
Net loans originated for sale	(14,816)	(22,013)	(14,357)
Proceeds from sale of loans held for sale	16,601	22,024	13,923
Net gains on disposition of premises and equipment	(2)	0	0
Net loss on sales of other real estate owned	75	9	5
Life insurance death benefit	(291)	0	0
Increase in cash surrender value of bank-owned life insurance	(1,073)	(1,018)	(1,038)
Net amortization of securities	3,316	4,589	4,012
Increase in accrued interest receivable	(233)	(241)	(2,085)
Decrease in prepaid FDIC insurance assessments	811	1,073	1,698
Increase in other assets	(397)	(2,538)	(402)
(Decrease) increase in other liabilities	(1,792)	980	(585)
Net cash provided by operating activities	23,153	21,066	18,084
Cash flows from investing activities:
Investment securities available-for-sale: Purchases	(155,464)	(207,880)	(400,644)
Investment securities available-for-sale: Sales	122,165	130,059	254,821
Investment securities available-for-sale: Maturities, calls and principal repayments	46,378	48,406	48,029
Investment securities held-to-maturity: Purchases	(23,531)	(16,606)	(13,118)
Maturities and principal repayment	3,830	30,258	7,475
Net (purchase) redemption of restricted investment in bank stock	(22)	319	363
Net increase in loans	(71,761)	(83,478)	(49,223)
Purchases of premises and equipment	(973)	(842)	(316)
Purchase of bank-owned life insurance	0	(5,000)	0
Proceeds from life insurance death benefits	592	0	0
Proceeds from sale of premises and equipment	2	0	0
Proceeds from sale of other real estate owned	1,230	500	33
Cash and cash equivalent acquired in acquisition	0	6,195	0
Cash consideration paid in acquisition	0	(10,251)	0
Net cash used in investing activities	(77,554)	(108,320)	(152,580)
Cash flows from financing activities:
Net increase in deposits	35,083	100,271	261,083
Net decrease in short-term borrowings	0	0	(41,855)
Payments on long-term borrowings	0	(15,000)	(10,000)
Cash dividends on preferred stock	(141)	(363)	(417)
Cash dividends on common stock	(4,254)	(2,778)	(1,955)
Proceeds from issuance of Series B preferred stock	0	0	11,250
Redemption of Series A preferred stock	0	0	(10,000)
Warrant repurchased	0	0	(245)
Issuance cost of common stock	(13)	(8)	(5)
Issuance cost of Series B preferred stock	0	0	(84)
Tax expense from stock based compensation	16	28	0
Issuance of restricted stock award	243	0	0
Proceeds from exercise of stock options	21	141	328
Net cash provided by financing activities	30,955	82,291	208,100
Net (decrease) increase in cash and cash equivalents	(23,446)	(4,963)	73,604
Cash and cash equivalents at beginning of period	106,138	111,101	37,497
Cash and cash equivalents at end of period	82,692	106,138	111,101
Supplemental disclosures of non-cash investing activities:
Trade date accounting settlement for investments	8,759	0	0
Noncash activities: Transfer of loans to other real estate owned	236	1,300	629
Transfer from investment securities available-for-sale to investment securities held-to-maturity	138,300	0	66,833
Interest paid on deposits and borrowings	10,993	11,894	12,226
Income taxes	4,727	6,280	4,484
Non-cash assets acquired: Investment securities available-for-sale	0	37,143	0
Non-cash assets acquired: Loans	0	52,192	0
Non-cash assets acquired: Premises and equipment, net	0	1,262	0
Non-cash assets acquired: Accrued interest receivable	0	389	0
Total non-cash assets acquired	0	90,986	0
Liabilities assumed: Deposits	0	85,236	0
Liabilities assumed: Other liabilities	0	795	0
Total liabilities assumed	0	86,031	0
Net non-cash assets acquired	0	4,056	0
Bargain gain on acquisition	0	899	0
Net cash and cash equivalents acquired	0	6,195	0
Cash consideration paid in acquisition	$ 0	$ 10,251	$ 0