FAIR VALUE MEASUREMENT, Assets Measured on Non-recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Summary of fair value measurements of assets measured on a non-recurring basis [Abstract]
Impaired loans	$ 18,929		$ 19,531
Foreclosed real estate and repossessed assets	55	$ 129	198	$ 206	$ 267	$ 137
Loans held-for-sale at carrying value	62,381		64,488
Non-recurring [Member]
Summary of fair value measurements of assets measured on a non-recurring basis [Abstract]
Impaired loans	3,016		4,545
Foreclosed real estate and repossessed assets	55		198
Total	3,071		4,743
Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Summary of fair value measurements of assets measured on a non-recurring basis [Abstract]
Impaired loans	0		0
Foreclosed real estate and repossessed assets	0		0
Total	0		0
Non-recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Summary of fair value measurements of assets measured on a non-recurring basis [Abstract]
Impaired loans	3,016		4,545
Foreclosed real estate and repossessed assets	55		198
Total	3,071		4,743
Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Summary of fair value measurements of assets measured on a non-recurring basis [Abstract]
Impaired loans	0		0
Foreclosed real estate and repossessed assets	0		0
Total	$ 0		$ 0