SECURITIES - AMORTIZED COST AND FAIR VALUE BY CONTRACTUAL MATURITY (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Amortized Cost
Due in one year or less	$ 300
Due after one year through five years	34,432
Due after five years through ten years	49,420
Due after ten years	53,314
Securities due at a single maturity date	137,466
Amortized Cost	302,261		$ 275,218
Fair Value
Due in one year or less	301
Due after one year through five years	34,951
Due after five years through ten years	49,811
Due after ten years	54,071
Securities due at a single maturity date	139,134
Fair Value	301,927		273,770
Sales of securities
Proceeds from sales of securities	0	$ 9,250
Gross gains realized on sales of securities	0	126
Gross losses realized on sales of securities	0	0
Tax provision related to realized gains	0	$ 43
Mortgage-backed - residential
Amortized Cost
Amortized Cost	164,475		148,327
Fair Value
Fair Value	162,453		145,770
Equity securities
Amortized Cost
Amortized Cost	320		320
Fair Value
Fair Value	$ 340		$ 340