LOANS AND ALLOWANCE FOR LOAN LOSSES (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans And Leases Receivable Gross Carrying Amount Non Covered Loans	$ 771,600,000	$ 674,200,000
Covered Loans Acquired	137,500,000	271,300,000
Modified loans	96,500,000	29,100,000
Troubled debt restructurings, previous charge-offs	1,300,000	2,200,000
Allowance for loan losses allocated to troubled debt restructurings	2,700,000	231,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,300,000	1,600,000
Troubled debt restructurings, provision for loan loss expense	751,000	843,000	$ 1,500,000
Allowance for loan losses adjustments	1,400,000	232,000
Purchased Loan Pools	592,963,000	0
Purchase Premium Paid At Acquisition	12,300,000
Residential mortgages on properties principal balances	580,700,000
Allowance for Loan and Lease Losses, Loans Acquired	581,000
Purchased Non Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	13,330,000	18,249,000	6,659,000
Modified loans	22,264,000	32,022,000
Troubled debt restructurings, previous charge-offs	377,000	29,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	883,000	411,000,000,000
Troubled debt restructuring loans	9,373,000	1,212,000	5,938,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,700,000	1,200,000
Non Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings, provision for loan loss expense		84,000
Allowance for Loan and Lease Loss, Recovery of Bad Debts	237,000
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	13,238,000	35,412,000
Modified loans	13,821,000	33,383,000
Troubled debt restructurings, previous charge-offs	1,200,000	1,800,000
Troubled debt restructuring loans	15,500,000	24,600,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,200,000	4,300,000
Transferred From Covered Loan To Purchased Non Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	6,700,000
Loans Excluding Purchased Non Covered And Covered Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	16,860,000	21,728,000	29,203,000
Modified loans	26,268,000	33,107,000
Troubled debt restructurings principal balances	7,300,000	2,800,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,200,000	1,200,000
Troubled debt restructuring loans	14,418,000	$ 12,759,000	$ 17,214,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 100,000
Loan To Value Ratio	110.00%
Past due loan accrued	30 days
Minimum [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 200,000