OTHER REAL ESTATE OWNED (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Mortgage Loans on Real Estate [Line Items]
Balance at beginning of year	$ 14,759	$ 33,984
New foreclosed properties	9,752	7,422
Sales	(14,183)	(20,649)
Writedowns	(2,518)	(5,998)
Balance at end of year	7,810	14,759	$ 33,984
Other real estate owned by geographical location, segment and class [Abstract]
Total	14,759	33,984	33,984
Foreclosed property expenses [Abstract]
Total foreclosed property expenses	4,354	7,418	17,071
Realized net losses on dispositions and holding losses on valuations of foreclosed properties	3,000	5,700	$ 14,500
Commercial And Industrial [Member]
Mortgage Loans on Real Estate [Line Items]
Balance at beginning of year	84
Balance at end of year		84
Other real estate owned by geographical location, segment and class [Abstract]
Total	84	84
All Other [Member]
Mortgage Loans on Real Estate [Line Items]
Balance at beginning of year	108
Balance at end of year	60	108
Other real estate owned by geographical location, segment and class [Abstract]
Total	$ 108	$ 108