Consolidated Statements of Operations (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Interest income
Loans, including fees	$ 53,898,000	$ 62,356,000	$ 77,791,000
Securities, taxable	4,383,000	6,685,000	7,846,000
Securities, tax-exempt	1,415,000	1,805,000	2,291,000
Federal funds sold	192,000	199,000	176,000
Interest-bearing deposit balances	29,000	24,000	39,000
Total interest income	59,917,000	71,069,000	88,143,000
Interest expense
Deposits	11,137,000	16,384,000	23,529,000
Short-term borrowings	157,000	405,000	1,410,000
Federal Home Loan Bank advances	993,000	2,033,000	5,509,000
Other borrowings	929,000	1,010,000	1,346,000
Total interest expense	13,216,000	19,832,000	31,794,000
Net interest income	46,701,000	51,237,000	56,349,000
Provision for loan losses	(3,100,000)	6,900,000	31,800,000
Net interest income after provision for loan losses	49,801,000	44,337,000	24,549,000
Noninterest income
Service charges on accounts	1,523,000	1,640,000	1,797,000
Earnings on bank owned life insurance	1,528,000	1,777,000	1,718,000
Mortgage banking activities	1,479,000	846,000	1,092,000
Rental income from other real estate owned	1,061,000	825,000	1,488,000
Credit and debit card fees	891,000	825,000	727,000
Payroll processing	591,000	515,000	494,000
Letter of credit fees	336,000	300,000	460,000
Net gain on sale of securities	0	0	476,000
Gain on sale of commercial loans	0	0	324,000
Other income	585,000	554,000	668,000
Total noninterest income	7,994,000	7,282,000	9,244,000
Noninterest expense
Salaries and benefits	19,367,000	17,891,000	18,297,000
Occupancy	2,501,000	2,780,000	2,838,000
Furniture and equipment rent, depreciation and maintenance	1,176,000	1,206,000	1,481,000
Nonperforming asset costs	5,862,000	8,290,000	10,858,000
Data processing	3,193,000	2,719,000	2,598,000
FDIC insurance costs	1,200,000	2,843,000	4,370,000
Advertising	1,167,000	747,000	906,000
FHLB advance prepayment fees	0	213,000	1,021,000
Other expense	5,158,000	4,806,000	4,787,000
Total noninterest expenses	39,624,000	41,495,000	47,156,000
Income (loss) before federal income tax expense (benefit)	18,171,000	10,124,000	(13,363,000)
Federal income tax expense (benefit)	5,636,000	(27,361,000)	(47,000)
Net income (loss)	12,535,000	37,485,000	(13,316,000)
Preferred stock dividends and accretion	1,030,000	1,343,000	1,295,000
Net income (loss) attributable to common shares	$ 11,505,000	$ 36,142,000	$ (14,611,000)
Earnings (loss) per common share:
Basic	$ 1.33	$ 4.20	$ (1.72)
Diluted	$ 1.30	$ 4.07	$ (1.72)