IMPAIRED LOANS AND ALLOWANCE FOR LOAN LOSSES - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Newly identified TDRs	$ 1,700,000	$ 2,000,000
Troubled Debt Restructuring Outstanding	19,300,000		$ 20,000,000
Loans and Leases Receivable, Impaired, Interest Income Recognized, Change in Present Value Attributable to Passage of Time	$ 0
Loan Default Period	90 days
Nonaccrual loans and loans past due ninety days	$ 18,437,000		17,386,000
Purchased Loans [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans and loans past due ninety days	7,900,000		4,600,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0		0
Nonaccrual [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans and loans past due ninety days	10,600,000		12,800,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	$ 0		$ 0