LOAN SERVICING - SBA Servicing Asset (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Servicing Assets at Fair Value [Line Items]
Government-guaranteed lending	$ 9,450,000	$ 5,586,000	$ 3,159,000
Mortgage Loan Servicing
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance	455,033,000
Mortgage servicing fees	538,000
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	0
Acquired Yadkin MSRs at fair value	4,025,000
Additions	688,000
Payoffs	(126,000)
Amortization	(303,000)
Ending balance	4,284,000
Valuation allowance	(157,000)
Balance at end of period after valuation allowance	4,127,000
SBA Loans
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance	136,093,000
Government-guaranteed lending	1,063,000	522,000
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	1,759,000	976,000
Additions	1,628,000	995,000
Amortization	(306,000)	(212,000)
Ending balance	3,081,000	1,759,000
Valuation allowance	$ 0	$ 0