CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Activities
Net income	$ 6,107,000	$ 5,003,000	$ 5,365,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	7,242,000	10,353,000	10,225,000
Depreciation and amortization	1,147,000	1,228,000	1,357,000
Amortization (accretion) of premiums and discounts	2,738,000	1,390,000	2,206,000
Amortization of intangibles	137,000	137,000	137,000
Amortization of loan servicing rights	304,000	201,000	262,000
Amortization of deferred loan fees	(294,000)	(54,000)	162,000
Federal deferred income tax expense (benefit)	372,000	(43,000)	469,000
Securities gains, net	(189,000)	(832,000)	(393,000)
Share-based compensation expense	310,000	189,000	102,000
Loans originated for sale	(90,475,000)	(69,066,000)	(80,175,000)
Proceeds from sales of loan originations	87,864,000	71,612,000	79,853,000
Net gain from loan sales	(1,575,000)	(889,000)	(1,000,000)
Net loss on sale of other assets	92,000	293,000	116,000
Net gain on extinguishment of debt	0	0	2,210,000
Net decrease (increase) in accrued interest receivable and other assets	(243,000)	5,372,000	249,000
Net increase (decrease) in accrued interest payable, taxes and other liabilities	(448,000)	230,000	(4,477,000)
Net cash provided by operating activities	13,089,000	25,124,000	12,248,000
Investing Activities
Proceeds from sales of available-for-sale securities	25,462,000	36,427,000	15,499,000
Proceeds from maturities of available-for-sale securities	122,244,000	111,809,000	118,569,000
Purchase of available-for-sale securities	(129,101,000)	(152,265,000)	(111,777,000)
Proceeds from maturities of trading securities	0	0	436,000
Proceeds from sale of trading securities	0	0	7,774,000
Purchase of Federal Reserve Bank Stock	0	0	(756,000)
Net increase in loans made to customers	(46,676,000)	(42,419,000)	(25,395,000)
Proceeds from the sale of other real estate owned	1,070,000	3,651,000	584,000
Purchase of bank premises and equipment	(900,000)	(774,000)	(906,000)
Proceeds from sale of bank premises and equipment	0	257,000	11,000
Net cash provided by (used in) investing activities	(27,901,000)	(43,314,000)	4,039,000
Financing Activities
Net increase (decrease) in demand and other noninterest-bearing	13,181,000	11,237,000	(3,029,000)
Net increase in savings, money market and interest-bearing demand	17,310,000	41,543,000	13,389,000
Net decrease in certificates of deposit	(21,979,000)	(40,226,000)	(3,267,000)
Net increase (decrease) in short-term borrowings	888,000	(705,000)	(525,000)
Proceeds from Federal Home Loan Bank advances	57,500,000	24,500,000	34,000,000
Payment of Federal Home Loan Bank advances	(52,472,000)	(24,504,000)	(34,004,000)
Deferred FHLB prepayment penalty	(1,017,000)	0	0
Extinguishment of debt, net	0	0	(10,000)
Repurchase of warrants	(860,000)	0	0
Redemption Preferred stock	(6,159,000)	0	0
Dividends paid	(1,568,000)	(1,576,000)	(1,565,000)
Net cash provided by financing activities	4,824,000	10,269,000	4,989,000
Net increase (decrease) in cash and cash equivalents	(9,988,000)	(7,921,000)	21,276,000
Cash and cash equivalents, January 1	40,647,000	48,568,000	27,292,000
Cash and cash equivalents, December 31	30,659,000	40,647,000	48,568,000
Supplemental cash flow information
Interest paid	7,745,000	10,424,000	13,404,000
Income taxes paid	2,006,000	960,000	675,000
Transfer of loans to other real estate owned	1,173,000	3,120,000	2,970,000
Common stock issued for extinguishment of debt	$ 0	$ 0	$ 2,040,000