CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities
Net income	$ 10,717	$ 8,569	$ 6,832
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	1,205	1,309	1,401
Amortization (accretion), net	(476)	(194)	(75)
Provision for loan losses	500	1,150	1,450
Securities amortization, net	1,041	1,133	975
Securities (gains) losses, net	(52)	(287)	(412)
Net change in trading assets, excluding proceeds from liquidation	(114)	(61)	(161)
Proceeds from liquidation of trading assets	5,706
Originations of loans held for sale	(56,502)	(62,275)	(48,953)
Proceeds from sale of loans	57,722	64,273	50,593
Gain on sale of loans	(1,727)	(2,098)	(1,488)
Stock based compensation expense	163	153	133
Losses (gain) on disposal of fixed assets	(1,200)
Losses (gain) on other real estate	(33)	(128)	(5)
Deferred taxes	415	(309)	(17)
Changes in:
Interest receivable	(236)	(34)	(73)
Write-downs of other real estate, net	20	187	252
Other assets	806	1,624	(1,163)
Interest payable	146	33	(42)
Other liabilities	461	(151)	(1,186)
Net cash from operating activities	18,562	12,894	8,061
Cash flows from investing activities
Acquisition of Madison Financial Corp., net			3,514
Net change in interest bearing time deposits	3,199	(155)	(615)
Purchases of securities, available for sale	(123,615)	(145,232)	(84,479)
Proceeds from sales of securities, available for sale	27,121	23,888	21,627
Proceeds from principal payments and maturities of securities	51,283	108,949	71,988
Net change in loans	5,700	(35,357)	(12,211)
Purchases of bank premises and equipment	(2,896)	(462)	(737)
Capitalized expenditures for other real estate	(47)
Proceeds from sale of other real estate	1,377	4,199	5,848
Proceeds from sale of bank premises and equipment	2,102	4	7
Net cash from investing activities	(35,776)	(44,166)	4,942
Cash flows from financing activities
Net change in deposits	12,292	44,000	8,289
Net change in repurchase agreements and other borrowings	(973)	2,359	(188)
Net change in short-term advances from Federal Home Loan Bank	8,400		(10,000)
Long-term FHLB advances	13,000	15,000	14,709
Payments on long-term FHLB advances	(15,168)	(10,333)	(10,661)
Proceeds from note payable			5,000
Payments on note payable	(769)	(704)	(206)
Redemption of acquired preferred shares and unpaid dividends and interest			(6,066)
Proceeds from issuance of common stock, including options and grants, including tax benefits	64	49	2
Purchase of common stock	(263)	(668)	(31)
Dividends paid	(3,447)	(3,229)	(2,972)
Net cash from financing activities	13,136	46,474	(2,124)
Net change in cash and cash equivalents	(4,078)	15,202	10,879
Cash and cash equivalents at beginning of year	43,250	28,048	17,169
Cash and cash equivalents at end of year	39,172	43,250	28,048
Supplemental disclosures of cash flow information Cash paid during the year for:
Interest expense	4,868	4,393	4,033
Income taxes	2,400	800	200
Supplemental schedules of non-cash investing activities
Real estate acquired through foreclosure	$ 1,897	3,735	3,394
Issuance of common stock in exchange for net assets in acquisition, net of issuance costs			$ 7,939
Transfer of premises and equipment to held for sale		$ 969