Consolidated Statement Of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Activities:
Net income	$ 10,178,000	$ 8,471,000
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Gain on sale of securities, net	(273,000)	(296,000)
Depreciation and amortization of premises and equipment	1,242,000	1,299,000
Amortization of software	137,000	155,000
Intangible asset amortization	193,000	211,000
Amortization of investment security premium, net of discount accretion	156,000	144,000
Deferred tax (benefit) liability	(11,000)	(1,311,000)
Stock-based compensation	339,000	381,000
Excess tax benefits from share-based payment arrangements	(55,000)	(84,000)
Deferral of loan fees and costs, net	346,000	(240,000)
Provision (benefit) for loan losses	(1,259,000)	1,649,000
Reserve for purchased receivables	349,000
Purchases of loans held for sale	(185,673,000)
Proceeds from the sale of loans held for sale	176,204,000	5,558,000
Gain on sale of other real estate owned	18,000	(859,000)
Impairment on other real estate owned	173,000
Equity in undistributed earnings from mortgage affiliate	(320,000)	200,000
Net changes in assets and liabilities:
(Increase) decrease in accrued interest receivable	66,000	371,000
(Increase) decrease in other assets	(506,000)	2,105,000
Increase (decrease) in other liabilities	2,000	(208,000)
Net Cash Provided by Operating Activities	1,306,000	17,546,000
Investing Activities:
Purchases of investment securities—available-for-sale	(63,491,000)	(113,242,000)
Proceeds from sales/maturities of securities—available-for-sale	115,299,000	115,644,000
Proceeds from calls/maturities of securities—held-to-maturity	1,065,000	1,735,000
Purchases of domestic certificates of deposit	(11,500,000)	(12,000,000)
Proceeds from maturities of domestic certificates of deposit	10,000,000
Proceeds from redemption of FHLB stock	18,000
(Increase) decrease in purchased receivables, net	6,534,000	(9,007,000)
(Increase) decrease in loans, net	(26,866,000)	40,171,000
Proceeds from sale of other real estate owned	964,000	7,912,000
Investment in other real estate owned	(44,000)	(29,000)
Decrease in loan to Elliott Cove, net	110,000	122,000
Purchases of premises and equipment	(1,238,000)	(571,000)
Net Cash (Used) Provided by Investing Activities	30,851,000	30,735,000
Financing Activities:
(Decrease) increase in deposits	33,696,000	1,431,000
Increase in securities sold under repurchase agreements	6,275,000	4,160,000
(Decrease) increase in borrowings	(109,000)	(724,000)
Distributions to noncontrolling interest	(341,000)	(315,000)
Excess tax benefits from share-based payment arrangements	55,000	84,000
Cash dividends paid	(2,656,000)	(2,380,000)
Net Cash (Used) Provided by Financing Activities	36,920,000	2,256,000
Net Increase in Cash and Cash Equivalents	69,077,000	50,537,000
Cash and Cash Equivalents at Beginning of Period	79,530,000	66,033,000
Cash and Cash Equivalents at End of Period	148,607,000	116,570,000
Supplemental Information:
Income taxes paid	5,077,000	2,880,000
Interest paid	1,940,000	3,009,000
Transfer of loans to other real estate owned	1,684,000	2,255,000
Loans made to facilitate sales of other real estate owned	300,000	1,362,000
Cash dividends declared but not paid	$ 30,000	$ 31,000