COMMITMENTS AND CONTINGENCIES (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Interest rate swaps
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	$ 43,000	$ 43,000
Forward-Starting Interest Rate Swap
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	50,000	0
Customer loan swaps
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	91,556	58,234
Home Equity
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	323,583	303,815
Commercial and commercial real estate
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	48,290	47,066
Residential
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	15,525	10,975
Letters of Credit
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	4,016	3,103
Other Commitments
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	$ 2,415	$ 1,305