Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities
Net income	$ 14,992	$ 16,459	$ 13,446
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,155	4,065	4,114
Net premium amortization of investment securities:
Provision for loan losses	(3,429)	(4,364)	(2,600)
Deferred income tax expense (benefit)	1,631	3,931	(473)
Mortgage loans originated for sale	(40,027)	(25,498)	(52,016)
Proceeds from sale of mortgage loans	40,513	29,254	50,957
Gains on sale of mortgage loans, net	(824)	(490)	(1,036)
Loss (gain) on disposal of premises and equipment, net	20	(5)	7
Net loss on sale and write downs of other real estate	1,289	3,404	5,702
Net (gain) loss on sale of available for sale investment securities	(171)	63	50
Increase in cash surrender value of company-owned life insurance	(906)	(926)	(926)
Death benefits in excess of cash surrender value on company-owned life insurance	0	(276)	0
Decrease in accrued interest receivable	233	276	173
Decrease (increase) in other assets	400	(1,860)	(241)
Decrease in accrued interest payable	(93)	(193)	(233)
Increase in other liabilities	2,390	1,096	2,036
Net cash provided by operating activities	25,930	29,011	24,023
Proceeds from maturities and calls of investment securities:
Available for sale	133,886	88,905	123,231
Held to maturity	65	60	55
Proceeds from sale of available for sale investment securities	11,570	12,967	2,233
Purchase of investment securities:
Available for sale	(109,675)	(105,888)	(190,306)
Held to maturity	0	(3,065)	0
Proceeds from sale of restricted stock investments, net	0	148	0
Loans originated for investment (greater) less than principal collected, net	(21,871)	59,615	5,638
Purchase of loans	(8,283)	(3,756)	(131)
Principal collected on purchased loans	1,942	836	33
Proceeds from death benefits of company-owned life insurance	0	738	0
Purchases of premises and equipment	(1,721)	(2,138)	(3,525)
Proceeds from sale of other real estate	9,939	8,811	9,458
Proceeds from disposals of premises and equipment	23	21	28
Net cash provided by (used in) investing activities	15,875	57,254	(53,286)
Cash Flows from Financing Activities
Net decrease in deposits	(18,167)	(23,054)	(595)
Net increase (decrease) in federal funds purchased and other short-term borrowings	5,763	(533)	5,040
Proceeds from securities sold under agreements to repurchase and other long-term borrowings	711	9	754
Repayments of securities sold under agreements to repurchase and other long-term borrowings	(155)	(8,165)	(2,171)
Redemption of preferred stock	(10,000)	(20,000)	0
Dividends paid, preferred stock	(508)	(1,990)	(1,500)
Shares issued under employee stock purchase plan	130	129	133
Net cash (used in) provided by financing activities	(22,226)	(53,604)	1,661
Net increase (decrease) in cash and cash equivalents	19,579	32,661	(27,602)
Cash and cash equivalents at beginning of year	100,914	68,253	95,855
Cash and cash equivalents at end of year	120,493	100,914	68,253
Cash paid during the year for:
Interest	8,734	10,346	12,228
Income taxes	2,718	2,850	6,150
Transfers from loans to other real estate	1,397	8,259	6,110
Sale and financing of other real estate	403	2,525	5,711
Employee Stock Purchase Plan Expense [Member]
Net premium amortization of investment securities:
Noncash compensation expense	31	32	36
Director Fee Compensation [Member]
Net premium amortization of investment securities:
Noncash compensation expense	104	82	0
Available-for-sale Securities [Member]
Net premium amortization of investment securities:
Net premium amortization of investment securities	5,570	3,919	5,027
Held-to-maturity Securities [Member]
Net premium amortization of investment securities:
Net premium amortization of investment securities	$ 52	$ 42	$ 0