LOANS AND ALLOWANCE FOR LOAN LOSSES LOANS AND ALLOWANCE FOR LOAN LOSSES - Contractual Obligations Due From Directors, Executive Officers, and Their Interests (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from Sale of Loans Held-for-sale	$ 7,308,000	$ 5,294,000	$ 2,076,000
Loans and Leases Receivable, Related Parties [Roll Forward]
Proceeds from sale of loans held-for-sale, gross		5,294,000	2,076,000
Gain (loss) on sales of loans, net	0	0	0
Directors and Officers
Loans and Leases Receivable, Related Parties [Roll Forward]
Loans to directors and officers at beginning of period	4,256,000	7,399,000	26,437,000
Additions for new directors	5,356,000	0	5,850,000
Reductions for retirement of directors	0	0	(24,835,000)
New advances to directors and officers	0	0	1,092,000
Payoffs and principal reductions	(1,032,000)	(3,143,000)	(1,145,000)
Loans to directors and officers at end of period	8,580,000	4,256,000	7,399,000
Commitments to directors and officers at December 31	$ 8,580,000	$ 1,027,000	$ 2,024,000