PREMISES AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Premises and equipment [Abstract]
Premises and equipment, gross	$ 85,123	$ 86,184
Less accumulated depreciation and amortization	55,726	53,897
Net book value	29,397	32,287
Depreciation expense	4,044	3,861	$ 3,236
Rent expense	1,300	1,500	$ 1,000
Rent commitments, before considering renewal options [Abstract]
2016	1,166
2017	1,143
2018	1,143
2019	830
2020	559
2021 and thereafter	3,590
Total	8,431
Leases in premises and equipment [Abstract]
Buildings	3,537	3,537
Accumulated depreciation	(232)	0
Total	3,305	3,537
Schedule by year of future minimum lease payments under the capitalized lease [Abstract]
2016	234
2017	234
2018	234
2019	234
2020	234
2021 and thereafter	2,407
Total minimum lease payments	3,577
Less amount representing interest	704
Present value of net minimum lease payments	2,873
Land
Premises and equipment [Abstract]
Premises and equipment, gross	4,803	4,803
Buildings
Premises and equipment [Abstract]
Premises and equipment, gross	38,660	38,604
Projects in progress
Premises and equipment [Abstract]
Premises and equipment, gross	167	132
Equipment and furniture
Premises and equipment [Abstract]
Premises and equipment, gross	35,734	36,551
Leasehold improvements
Premises and equipment [Abstract]
Premises and equipment, gross	$ 5,759	$ 6,094