Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 10,308	$ 9,623
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	250	150
Depreciation and amortization	1,652	1,944
Amortization of investment security premiums and accretion of discounts, net	939	477
Stock based compensation	97	136
Net losses (gains) on sales of investment securities		(106)
Deferred (gain) on sale of premises	387	387
Loss (gain) on sale of other real estate owned		35
Equity in losses of real estate limited partnerships, net	846	981
Increase in cash surrender value of bank owned life insurance	(181)	(237)
Changes in assets and liabilities:
Net change in interest receivable	111	673
Net change in other assets	1,247	4,118
Net change in interest payable	(32)	(43)
Net change in other liabilities	841	(1,722)
Net cash provided by operating activities	15,691	15,642
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of investment securities available for sale		56,889
Proceeds from maturities of investment securities available for sale	34,957	28,560
Proceeds from maturities of investment securities held to maturity	14,917	11,692
Proceeds from redemption of Federal Home Loan Bank stock		3,118
Purchases of investment securities available for sale	(112,892)	(30,190)
Loan originations in excess of principal payments	(75,665)	9,449
Proceeds from sales of other real estate owned		68
Real estate limited partnership investments	(1,594)	(1,823)
Purchases of bank premises and equipment	(1,179)	(2,293)
Net cash provided by (used in) investing activities	(141,456)	75,470
CASH FLOWS FROM FINANCING ACTIVITIES:
Net change in deposits	78,701	(19,495)
Net change in securities sold under agreement to repurchase, short-term	9,330	(62,157)
Principal payments on long-term debt	(62)	(62)
Cash dividends paid	(5,319)	(5,312)
Increase in deferred compensation arrangements	215	176
Repurchased restricted stock to pay taxes on vested awards		(82)
Tax benefit from exercise of stock options and distribution of shares in deferred compensation arrangements (inflow)		6
Tax benefit from exercise of stock options and distribution of shares in deferred compensation arrangements (outflow)	(100)
Net cash provided by financing activities	82,765	(86,926)
Net cash used in financing activities	82,765	(86,926)
Increase (decrease) in cash and cash equivalents	(43,000)	4,186
Cash and cash equivalents beginning of period	154,459	115,471
Cash and cash equivalents end of period	111,459	119,657
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Total interest payments	3,079	3,523
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Distribution of stock under deferred compensation arrangements	514	553
Non-cash exercise of stock options	$ 626	124
Transfer of securities from available for sale to held to maturity		$ 12,626