FAIR VALUE MEASUREMENTS (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	$ 466,169,000	$ 419,756,000
Unrealized losses on forward commitments	1,300,000
Municipal bonds and obligations
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	84,757,000	77,854,000
Government guaranteed residential mortgage-backed securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	43,092,000	45,096,000
Government-sponsored residential mortgage-backed securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	278,593,000	247,611,000
Corporate bonds
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	10,007,000	9,727,000
Trust preferred securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	20,957,000	17,815,000
Other bonds and obligations
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	3,472,000	644,000
Marketable equity securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	25,291,000	21,009,000
Level 1 Inputs
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	25,291,000
Derivative liabilities	282,000
Level 2 Inputs
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	439,993,000
Loans Held for sale	85,368,000
Derivative assets	14,746,000
Derivative liabilities	29,818,000
Level 3 Inputs
Assets and financial liabilities measured at fair value on a recurring basis
Trading account security	16,893,000
Available-for-sale securities:	885,000
Derivative assets	6,258,000
Derivative liabilities	1,055,000
Level 3 Inputs | Trust preferred securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	500,000
Recurring basis | Level 1 Inputs
Assets and financial liabilities measured at fair value on a recurring basis
Derivative liabilities	282,000
Recurring basis | Level 1 Inputs | Marketable equity securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	25,291,000	21,009,000
Recurring basis | Level 2 Inputs
Assets and financial liabilities measured at fair value on a recurring basis
Loans Held for sale	85,368,000
Derivative assets	14,746,000	13,926,000
Derivative liabilities	29,818,000	26,864,000
Recurring basis | Level 2 Inputs | Municipal bonds and obligations
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	84,757,000	77,854,000
Recurring basis | Level 2 Inputs | Government guaranteed residential mortgage-backed securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	43,091,000	45,096,000
Recurring basis | Level 2 Inputs | Government-sponsored residential mortgage-backed securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	278,593,000	247,611,000
Recurring basis | Level 2 Inputs | Corporate bonds
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	10,007,000	9,727,000
Recurring basis | Level 2 Inputs | Trust preferred securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	20,072,000	17,271,000
Recurring basis | Level 2 Inputs | Other bonds and obligations
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	3,472,000	644,000
Recurring basis | Level 3 Inputs
Assets and financial liabilities measured at fair value on a recurring basis
Trading account security	16,893,000	17,395,000
Derivative assets	6,258,000
Derivative liabilities	1,055,000	66,000
Recurring basis | Level 3 Inputs | Trust preferred securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	885,000	544,000
Recurring basis | Total Fair Value
Assets and financial liabilities measured at fair value on a recurring basis
Trading account security	16,893,000	17,395,000
Loans Held for sale	85,368,000
Derivative assets	21,004,000	13,926,000
Derivative liabilities	31,155,000	26,930,000
Recurring basis | Total Fair Value | Municipal bonds and obligations
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	84,757,000	77,854,000
Recurring basis | Total Fair Value | Government guaranteed residential mortgage-backed securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	43,091,000	45,096,000
Recurring basis | Total Fair Value | Government-sponsored residential mortgage-backed securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	278,593,000	247,611,000
Recurring basis | Total Fair Value | Corporate bonds
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	10,007,000	9,727,000
Recurring basis | Total Fair Value | Trust preferred securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	20,957,000	17,815,000
Recurring basis | Total Fair Value | Other bonds and obligations
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	3,472,000	644,000
Recurring basis | Total Fair Value | Marketable equity securities
Assets and financial liabilities measured at fair value on a recurring basis
Available-for-sale securities:	$ 25,291,000	$ 21,009,000