LOANS AND LEASES - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan and lease losses covered	$ 277,000	$ 681,000	$ 197,000	$ 398,000
Purchased impaired loans, carrying balance	167,780,000		167,780,000			$ 191,626,000
Purchased impaired loans	182,900,000		182,900,000			213,300,000
Reclassification from/(to) non-accretable difference	3,402,000	(548,000)	3,720,000	(2,124,000)
Restructured Loans, Nonaccrual Status	8,000,000		8,000,000			9,300,000
Total loans	104,400,000		104,400,000			113,300,000
Write-downs	42,000	525,000	230,000	967,000
Gain (loss) on sale of other real estate owned	(43,000)	(419,000)	147,000	(893,000)
Real Estate Acquired Through Foreclosure	9,302,000	16,401,000	9,302,000	16,401,000	$ 11,210,000	$ 12,525,000	$ 20,906,000	$ 22,674,000
Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real Estate Acquired Through Foreclosure	100,000	500,000	100,000	500,000
Commercial | Non Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum			250,000
Residential - real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Write-downs	$ 13,000	$ 163,000	84,000	$ 187,000
Residential - real estate | Non Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum			$ 100,000