Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net income (loss)	$ 2,738	$ 6,932	$ (44,742)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	4,798	5,359	6,077
Net premium amortization of investment securities:
Available for sale	3,916	2,232	955
Held to maturity			(1)
Provision for loan losses	13,487	17,233	20,768
Goodwill impairment			52,408
Deferred income tax benefit	(2,227)	(3,392)	(9,905)
Noncash employee stock purchase plan expense	42	46	55
Mortgage loans originated for sale	(41,128)	(50,084)	(45,806)
Proceeds from sale of mortgage loans	41,981	50,761	46,994
Gains on sale of mortgage loans, net	(982)	(1,244)	(1,034)
Loss (gain) on disposal of premises and equipment, net	3	(30)	183
Net loss on sale and write downs of other real estate	5,945	4,878	1,074
Net gain on sale of available for sale investment securities	(1,355)	(8,889)	(3,488)
Decrease in accrued interest receivable	639	2,123	2,787
Income from company-owned life insurance	(918)	(1,044)	(1,230)
Death benefits in excess of cash surrender value on company-owned life insurance		(241)
Decrease (increase) in other assets	372	5,054	(1,027)
Decrease in accrued interest payable	(1,436)	(1,874)	(1,126)
Increase in other liabilities	2,187	320	2,095
Net cash provided by operating activities	28,062	28,140	25,037
Proceeds from maturities and calls of investment securities:
Available for sale	191,345	315,480	239,192
Held to maturity	55	45	840
Proceeds from sale of available for sale investment securities	201,093	311,243	183,002
Purchases of available for sale investment securities	(538,370)	(522,774)	(439,777)
Purchase of restricted stock investments		(368)	(206)
Principal collected on loans originated for investment, net	80,268	50,085	5,920
Proceeds from surrender of company-owned life insurance	2,248	8,567
Proceeds from death benefits of company-owned life insurance		446
Purchases of premises and equipment	(2,679)	(4,298)	(2,165)
Proceeds from sale of other real estate	13,029	13,564	3,978
Proceeds from disposals of equipment	5	60	422
Net cash (used in) provided by investing activities	(53,006)	172,050	(8,794)
Net (decrease) increase in deposits	(28,507)	(169,861)	39,318
Net (decrease) increase in federal funds purchased and other short-term borrowings	(20,387)	194	(30,259)
Repayments of securities sold under agreements to repurchase and other long-term borrowings	(12,545)	(64,723)	(18,729)
Proceeds from issuance of preferred stock, net of issue costs			29,961
Dividends paid, common and preferred stock	(1,500)	(2,237)	(9,222)
Shares issued under employee stock purchase plan	136	157	249
Net cash (used in) provided by financing activities	(62,803)	(236,470)	11,318
Net (decrease) increase in cash and cash equivalents	(87,747)	(36,280)	27,561
Cash and cash equivalents at beginning of year	182,056	218,336	190,775
Interest	26,106	36,822	48,191
Income taxes	1,400	2,989	2,450
Transfers from loans to other real estate	26,586	17,771	20,332
Transfers from premises to other real estate			1,506
Cash and cash equivalents at end of year	$ 94,309	$ 182,056	$ 218,336