FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 4) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Loans held-for-sale
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	$ 0	$ 211,000	$ 2,400,000	$ 728,000
Fair Value, Measurements, Nonrecurring | OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	(41,000)	(1,556,000)	(994,000)	(1,739,000)
Fair Value, Measurements, Nonrecurring | Loans held-for-sale
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	0	0	(2,351,000)	(517,000)
Fair Value, Measurements, Nonrecurring | Loans Receivable | Non-PCI impaired loans
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	(219,000)	(979,000)	(3,753,000)	(11,275,000)
Fair Value, Measurements, Nonrecurring | Loans Receivable | Non-PCI impaired loans | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	(282,000)	101,000	1,741,000	(845,000)
Fair Value, Measurements, Nonrecurring | Loans Receivable | Non-PCI impaired loans | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	77,000	(707,000)	(5,497,000)	(9,806,000)
Fair Value, Measurements, Nonrecurring | Loans Receivable | Non-PCI impaired loans | Residential
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	(14,000)	(314,000)	(14,000)	(565,000)
Fair Value, Measurements, Nonrecurring | Loans Receivable | Non-PCI impaired loans | Consumer
Fair Value, Assets Measured on a Nonrecurring Basis
Fair value adjustments	$ 0	$ (59,000)	$ 17,000	$ (59,000)