ASSETS GAINS (LOSSES), NET - Components of gain (loss) on sale, disposals and writedown of assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Gains (losses) on sales of securities AFS, net	$ (212)	$ 1,220	$ 78
Gains (losses) on equity securities, net	77	0	0
Gains on sales of OREO, net	1,032	258	666
Write-downs of OREO	(120)	(127)	0
Write-down of other investment	0	0	(500)
Gains (losses) on sales of other investments, net	187	0	0
Gains (losses) on sales or dispositions of other assets, net	205	678	(190)
Asset gains (losses), net	$ 1,169	$ 2,029	$ 54