SECURITIES - Additional Information (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Proceeds from Sale of Available-for-sale Securities, Debt				$ 16,444,000	$ 67,330,000
Available-for-sale Securities, Gross Realized Gains				361,000	792,000
Available-for-sale Securities, Gross Realized Losses				0	373,000
Collateral Underlying Mortgage Investments Terms				30- and 15-year fixed and 10/1 adjustable rate mortgage
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		15,300,000		15,300,000
Cost Method Investments, Fair Value Disclosure		15,300,000		15,300,000
Fair Value, Total		554,860,000		554,860,000		511,344,000
Accumulated unrealized losses		(11,034,000)		(11,034,000)		(20,003,000)
Securities Available For Sale Transferred To Held-To-Maturity	158,800,000
Available For Sale Securities Transferred To Held To Maturity Securities Unrealized Gain Loss	3,000,000	0	0	(3,137,000)	0
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Total		17,521,000		17,521,000		47,653,000
Accumulated unrealized losses		(244,000)		(244,000)		(413,000)
Mortgage Backed Securities And Collateralized Mortgage Obligations Of Us Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Total		420,700,000		420,700,000
Accumulated unrealized losses		9,800,000		9,800,000
Mortgage Backed Securities And Collateralized Mortgage Obligations Of Us Government Sponsored Entities [Member] | Carrying Amount [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral		172,239,000		172,239,000
Mortgage Backed Securities And Collateralized Mortgage Obligations Of Us Government Sponsored Entities [Member] | Fair Value [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral		170,730,000		170,730,000
Collateralized Mortgage Backed Securities [Member] | Carrying Amount [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral		92,847,000		92,847,000
Collateralized Mortgage Backed Securities [Member] | Fair Value [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral		91,870,000		91,870,000
Collateralized Loan Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Total		116,639,000		116,639,000		32,179,000
Accumulated unrealized losses		$ (952,000)		$ (952,000)		$ (413,000)