INCOME TAXES AND DEFERRED TAXES INCOME TAXES AND DEFERRED TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Tax credit investments	$ 4,822		$ 4,822		$ 5,326
Unfunded commitments—tax credit investments	719		719		$ 1,398
Tax credits and other tax benefits recognized	284	$ 329	852	$ 958
Tax credit amortization expense included in provision for income taxes	$ 168	$ 255	$ 504	$ 745