INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities with Continuous Loss Position) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 54,980	$ 123,351
Less than 12 Months, Unrealized Losses	(178)	(355)
12 Months or More, Fair Value	114,267	134,007
12 Months or More, Unrealized Losses	(839)	(1,860)
Total Fair Value	169,247	257,358
Total Unrealized Losses	(1,017)	(2,215)
U.S. Government and agency obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	909	15,983
Less than 12 Months, Unrealized Losses	(10)	(58)
12 Months or More, Fair Value	9,941	9,847
12 Months or More, Unrealized Losses	(59)	(153)
Total Fair Value	10,850	25,830
Total Unrealized Losses	(69)	(211)
Total municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	9,842	16,322
Less than 12 Months, Unrealized Losses	(68)	(61)
12 Months or More, Fair Value	3,452	7,129
12 Months or More, Unrealized Losses	(14)	(60)
Total Fair Value	13,294	23,451
Total Unrealized Losses	(82)	(121)
Taxable municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	1,766	7,247
Less than 12 Months, Unrealized Losses	(3)	(23)
12 Months or More, Fair Value	2,240	3,461
12 Months or More, Unrealized Losses	(7)	(29)
Total Fair Value	4,006	10,708
Total Unrealized Losses	(10)	(52)
Tax exempt municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	8,076	9,075
Less than 12 Months, Unrealized Losses	(65)	(38)
12 Months or More, Fair Value	1,212	3,668
12 Months or More, Unrealized Losses	(7)	(31)
Total Fair Value	9,288	12,743
Total Unrealized Losses	(72)	(69)
Total mortgage-backed or related securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	44,229	91,046
Less than 12 Months, Unrealized Losses	(100)	(236)
12 Months or More, Fair Value	90,985	107,266
12 Months or More, Unrealized Losses	(607)	(1,362)
Total Fair Value	135,214	198,312
Total Unrealized Losses	(707)	(1,598)
1-4 residential agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	14,341	6,287
Less than 12 Months, Unrealized Losses	(77)	(57)
12 Months or More, Fair Value	3,401	11,744
12 Months or More, Unrealized Losses	(84)	(183)
Total Fair Value	17,742	18,031
Total Unrealized Losses	(161)	(240)
Multifamily agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	29,888	76,309
Less than 12 Months, Unrealized Losses	(23)	(167)
12 Months or More, Fair Value	87,584	95,522
12 Months or More, Unrealized Losses	(523)	(1,179)
Total Fair Value	117,472	171,831
Total Unrealized Losses	(546)	(1,346)
Multifamily other [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value		8,450
Less than 12 Months, Unrealized Losses		(12)
12 Months or More, Fair Value		0
12 Months or More, Unrealized Losses		0
Total Fair Value		8,450
Total Unrealized Losses		(12)
Other asset-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	9,889	9,765
12 Months or More, Unrealized Losses	(159)	(285)
Total Fair Value	9,889	9,765
Total Unrealized Losses	$ (159)	$ (285)