Consolidated Statement of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities:
Net income	$ 13,385,000	$ 13,375,000	$ 14,215,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	585,000	405,000	420,000
Depreciation and amortization	472,000	428,000	420,000
Amortization and accretion on investment securities	2,133,000	2,427,000	2,364,000
Deferred income taxes	478,000	670,000	(58,000)
Investment securities gains, net	(616,000)	(441,000)	(604,000)
Earnings on bank owned life insurance	(507,000)	(502,000)	(507,000)
Stock awards	200,000	218,000	201,000
Originations of loans held for sale	(11,129,000)	(20,239,000)	(37,398,000)
Proceeds from sales of loans held for sale	11,146,000	21,862,000	36,699,000
Gains on loans sold	(236,000)	(443,000)	(759,000)
Decrease (increase) in accrued interest receivable	84,000	88,000	(195,000)
Decrease in accrued interest payable	(139,000)	(248,000)	(369,000)
Other, net	322,000	217,000	382,000
Net cash provided by operating activities	16,178,000	17,817,000	14,811,000
Available-for-sale securities:
Proceeds from sales of available-for-sale securities	28,989,000	25,461,000	20,619,000
Proceeds from maturity and principal repayments of securities	41,756,000	78,596,000	117,375,000
Purchase of securities	(56,257,000)	(123,488,000)	(130,966,000)
Proceeds from redemption of Regulatory Stock	4,706,000	1,634,000	1,141,000
Purchase of Regulatory Stock	(2,815,000)	(1,997,000)	(1,405,000)
Net increase in loans	(15,331,000)	(38,620,000)	(15,230,000)
Purchase of interest bearing time deposits	(3,480,000)	(2,480,000)	0
Purchase of bank owned life insurance	(5,123,000)	0	0
Purchase of premises, equipment and software	(1,309,000)	(328,000)	(438,000)
Proceeds from sale of foreclosed assets held for sale	647,000	285,000	738,000
Net cash used in investing activities	(8,217,000)	(60,937,000)	(8,166,000)
Cash Flows from Financing Activities:
Net increase in deposits	25,617,000	11,220,000	3,103,000
Proceeds from long-term borrowings	6,820,000	0	0
Repayments of long-term borrowings	(4,200,000)	(20,781,000)	(5,590,000)
Net (decrease) increase in short-term borrowed funds	(27,753,000)	41,587,000	(2,166,000)
Purchase of treasury stock	(814,000)	(1,483,000)	(1,348,000)
Purchase of restricted stock	(170,000)	(115,000)	(142,000)
Dividends paid	(6,121,000)	(3,558,000)	(4,601,000)
Net cash provided by (used in) financing activities	(6,621,000)	26,870,000	(10,744,000)
Net increase (decrease) in cash and cash equivalents	1,340,000	(16,250,000)	(4,099,000)
Cash and Cash Equivalents at Beginning of Year	10,083,000	26,333,000	30,432,000
Cash and Cash Equivalents at End of Year	11,423,000	10,083,000	26,333,000
Supplemental Disclosures of Cash Flow Information:
Interest paid	5,092,000	6,563,000	8,028,000
Income taxes paid	2,835,000	3,245,000	4,345,000
Non-cash activities:
Real estate acquired in settlement of loans	1,095,000	1,051,000	374,000
Real estate transferred from other assets	$ 549,000	$ 0	$ 0