LOANS (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings, previous charge-offs	$ 1,200,000		$ 1,200,000
Allowance for loan losses allocated to troubled debt restructurings	2,900,000		3,100,000
Purchased Loan Pools	529,100,000		568,300,000
Mortgage Loans on Real Estate, Face Amount of Mortgages	521,300,000		559,400,000
Purchase Premium Paid At Acquisition	7,800,000		8,900,000
Residential mortgages on properties principal balances	521,300,000		559,400,000
Allowance for Loan and Lease Losses, Loans Acquired	2,100,000		1,800,000
Troubled Debt Restructurings Excluding Purchased Loans	16,600,000		18,200,000
Loans and Leases Receivable, Allowance	25,250,000		23,920,000
Modified Loans Value	16,200,000	$ 36,800,000
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net Amount	80,000,000		60,800,000
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net Amount	425,900,000		353,900,000
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	23,606,000	32,518,000	22,966,000
Troubled debt restructurings, previous charge-offs	1,500,000		1,500,000
Allowance for loan losses allocated to troubled debt restructurings	27,400,000		28,100,000
Troubled debt restructurings principal balances	355,000	1,100,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,100,000	1,100,000
Troubled debt restructuring loans	20,448,000	21,501,000	23,543,000
Purchased Loan Pools	918,000		925,000
Loans and Leases Receivable, Allowance	1,010,000,000		1,070,000,000
Modified Loans Value	28,041,000		25,060,000
Loans Excluding Purchased Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	18,281,000	15,700,000	18,114,000
Troubled debt restructurings principal balances	93,000	1,700,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,600,000	793,000
Troubled debt restructuring loans	13,659,000	14,385,000	14,209,000
Modified Loans Value	36,588,000		32,893,000
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 100,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan To Value Ratio	110.00%
Minimum [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 100,000	100,000	100,000
Troubled debt restructuring loans	100,000	$ 100,000	$ 100,000
Minimum [Member] | Independent Third Party Loan Review [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of Loan Relationship With Risk Ratings Reviewed Annually	250,000
Minimum [Member] | Internal Loan Review Department [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of Loan Relationship With Risk Ratings Reviewed Annually	$ 1,000,000