TRUST PREFERRED SECURITIES (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 15, 2004	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
TRUST PREFERRED SECURITIES.
Private placement, trust preferred securities, aggregate amount	$ 20,620
Trust preferred securities		$ 20,619	$ 20,619
LIBOR plus percentage		1.95%
Amount of hedged item		$ 10,000
Fixed interest rate		5.23%
Interest expense on trust preferred securities		$ 788	$ 747	$ 752