FAIR VALUE (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financial Assets
Total securities available-for-sale	$ 867,760us-gaap_AvailableForSaleSecurities	$ 891,106us-gaap_AvailableForSaleSecurities
Transfers of assets from Level 1 to Level 2	0	0
Transfers of assets from Level 2 to Level 1	0	0
U. S. government agency
Financial Assets
Total securities available-for-sale	661	798
State and municipal
Financial Assets
Total securities available-for-sale	334,298	331,112
Mortgage-backed securities-residential (Government Sponsored Entity)
Financial Assets
Total securities available-for-sale	182,172	185,429
Collateralized mortgage obligations (Government Sponsored Entity)
Financial Assets
Total securities available-for-sale	343,437	365,309
Equity securities
Financial Assets
Total securities available-for-sale	4,689	4,939
Other securities
Financial Assets
Total securities available-for-sale	2,503	3,519
Recurring basis \| Carrying Value
Financial Assets
Total securities available-for-sale	867,760	891,106
Mortgage banking derivatives	975	525
Recurring basis \| Carrying Value \| U. S. government agency
Financial Assets
Total securities available-for-sale	661	798
Recurring basis \| Carrying Value \| State and municipal
Financial Assets
Total securities available-for-sale	334,298	331,112
Recurring basis \| Carrying Value \| Mortgage-backed securities-residential (Government Sponsored Entity)
Financial Assets
Total securities available-for-sale	182,172	185,429
Recurring basis \| Carrying Value \| Collateralized mortgage obligations (Government Sponsored Entity)
Financial Assets
Total securities available-for-sale	343,437	365,309
Recurring basis \| Carrying Value \| Equity securities
Financial Assets
Total securities available-for-sale	4,689	4,939
Recurring basis \| Carrying Value \| Other securities
Financial Assets
Total securities available-for-sale	2,503	3,519
Recurring basis \| Fair Value \| Level 1
Financial Assets
Total securities available-for-sale	4,689	4,689
Recurring basis \| Fair Value \| Level 1 \| Equity securities
Financial Assets
Total securities available-for-sale	4,689	4,689
Recurring basis \| Fair Value \| Level 2
Financial Assets
Total securities available-for-sale	847,758	869,221
Mortgage banking derivatives	975	525
Recurring basis \| Fair Value \| Level 2 \| U. S. government agency
Financial Assets
Total securities available-for-sale	661	798
Recurring basis \| Fair Value \| Level 2 \| State and municipal
Financial Assets
Total securities available-for-sale	321,488	316,692
Recurring basis \| Fair Value \| Level 2 \| Mortgage-backed securities-residential (Government Sponsored Entity)
Financial Assets
Total securities available-for-sale	182,172	185,429
Recurring basis \| Fair Value \| Level 2 \| Collateralized mortgage obligations (Government Sponsored Entity)
Financial Assets
Total securities available-for-sale	343,437	365,309
Recurring basis \| Fair Value \| Level 2 \| Other securities
Financial Assets
Total securities available-for-sale		993
Recurring basis \| Fair Value \| Level 3
Financial Assets
Total securities available-for-sale	15,313	17,196
Recurring basis \| Fair Value \| Level 3 \| State and municipal
Financial Assets
Total securities available-for-sale	12,810	14,420
Recurring basis \| Fair Value \| Level 3 \| Equity securities
Financial Assets
Total securities available-for-sale		250
Recurring basis \| Fair Value \| Level 3 \| Other securities
Financial Assets
Total securities available-for-sale	$ 2,503	$ 2,526

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