INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities with Continuous Loss Position) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 81,568	$ 123,351
Less than 12 Months, Unrealized Losses	(582)	(355)
12 Months or More, Fair Value	113,403	134,007
12 Months or More, Unrealized Losses	(996)	(1,860)
Total Fair Value	194,971	257,358
Total Unrealized Losses	(1,578)	(2,215)
U.S. Government and agency obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	796	15,983
Less than 12 Months, Unrealized Losses	(9)	(58)
12 Months or More, Fair Value	9,935	9,847
12 Months or More, Unrealized Losses	(65)	(153)
Total Fair Value	10,731	25,830
Total Unrealized Losses	(74)	(211)
Total municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	21,876	16,322
Less than 12 Months, Unrealized Losses	(211)	(61)
12 Months or More, Fair Value	3,445	7,129
12 Months or More, Unrealized Losses	(16)	(60)
Total Fair Value	25,321	23,451
Total Unrealized Losses	(227)	(121)
Taxable municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	1,972	7,247
Less than 12 Months, Unrealized Losses	(7)	(23)
12 Months or More, Fair Value	2,237	3,461
12 Months or More, Unrealized Losses	(8)	(29)
Total Fair Value	4,209	10,708
Total Unrealized Losses	(15)	(52)
Tax exempt municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	19,904	9,075
Less than 12 Months, Unrealized Losses	(204)	(38)
12 Months or More, Fair Value	1,208	3,668
12 Months or More, Unrealized Losses	(8)	(31)
Total Fair Value	21,112	12,743
Total Unrealized Losses	(212)	(69)
Total mortgage-backed or related securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	53,049	91,046
Less than 12 Months, Unrealized Losses	(361)	(236)
12 Months or More, Fair Value	90,152	107,266
12 Months or More, Unrealized Losses	(742)	(1,362)
Total Fair Value	143,201	198,312
Total Unrealized Losses	(1,103)	(1,598)
1-4 residential agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	28,664	6,287
Less than 12 Months, Unrealized Losses	(308)	(57)
12 Months or More, Fair Value	3,305	11,744
12 Months or More, Unrealized Losses	(151)	(183)
Total Fair Value	31,969	18,031
Total Unrealized Losses	(459)	(240)
Multifamily agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	24,385	76,309
Less than 12 Months, Unrealized Losses	(53)	(167)
12 Months or More, Fair Value	86,847	95,522
12 Months or More, Unrealized Losses	(591)	(1,179)
Total Fair Value	111,232	171,831
Total Unrealized Losses	(644)	(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	5,847	0
Less than 12 Months, Unrealized Losses	(1)	0
12 Months or More, Fair Value	9,871	9,765
12 Months or More, Unrealized Losses	(173)	(285)
Total Fair Value	15,718	9,765
Total Unrealized Losses	$ (174)	$ (285)