MORTGAGE SERVICING RIGHTS - Balance of loans serviced for others and fair value of mortgage servicing rights (Details) (Balance of loans serviced for others and fair value of mortgage servicing rights, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Balance of loans serviced for others and fair value of mortgage servicing rights
Residential mortgage loans serviced for others	$ 146,258	$ 145,934
Fair value of mortgage servicing rights	$ 1,579	$ 1,159