INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 387,521	$ 411,424
Gross Unrealized Gains	(1,933)	(1,812)
Gross Unrealized Losses	1,578	2,215
Fair Value	$ 387,876	$ 411,021
Percent of Total Fair Value	100.00%	100.00%
U.S. Government and agency obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 11,829	$ 29,973
Gross Unrealized Gains	(1)	(8)
Gross Unrealized Losses	74	211
Fair Value	$ 11,756	$ 29,770
Percent of Total Fair Value	3.00%	7.20%
Total municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 59,129	$ 49,959
Gross Unrealized Gains	(152)	(190)
Gross Unrealized Losses	227	121
Fair Value	$ 59,054	$ 50,028
Percent of Total Fair Value	15.20%	12.20%
Taxable municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 16,483	$ 16,565
Gross Unrealized Gains	(70)	(65)
Gross Unrealized Losses	15	52
Fair Value	$ 16,538	$ 16,578
Percent of Total Fair Value	4.30%	4.00%
Tax exempt municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 42,646	$ 33,394
Gross Unrealized Gains	(82)	(125)
Gross Unrealized Losses	212	69
Fair Value	$ 42,516	$ 33,450
Percent of Total Fair Value	10.90%	8.20%
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 5,000	$ 5,000
Gross Unrealized Gains	(35)	(18)
Gross Unrealized Losses	0	0
Fair Value	$ 5,035	$ 5,018
Percent of Total Fair Value	1.30%	1.20%
Total mortgage-backed or related securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 280,251	$ 300,979
Gross Unrealized Gains	(1,631)	(1,429)
Gross Unrealized Losses	1,103	1,598
Fair Value	$ 280,779	$ 300,810
Percent of Total Fair Value	72.40%	73.20%
1-4 residential agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 55,178	$ 48,001
Gross Unrealized Gains	(699)	(758)
Gross Unrealized Losses	459	240
Fair Value	$ 55,418	$ 48,519
Percent of Total Fair Value	14.30%	11.80%
1-4 residential other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 518	$ 675
Gross Unrealized Gains	(30)	(38)
Gross Unrealized Losses	0	0
Fair Value	$ 548	$ 713
Percent of Total Fair Value	0.20%	0.20%
Multifamily agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 214,102	$ 241,800
Gross Unrealized Gains	(804)	(627)
Gross Unrealized Losses	644	1,346
Fair Value	$ 214,262	$ 241,081
Percent of Total Fair Value	55.20%	58.70%
Multifamily other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 10,453	$ 10,503
Gross Unrealized Gains	(98)	(6)
Gross Unrealized Losses	0	12
Fair Value	$ 10,551	$ 10,497
Percent of Total Fair Value	2.70%	2.50%
Asset-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 31,312	$ 25,513
Gross Unrealized Gains	(114)	(167)
Gross Unrealized Losses	174	285
Fair Value	$ 31,252	$ 25,395
Percent of Total Fair Value	8.10%	6.20%
SLMA [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 15,419	$ 15,462
Gross Unrealized Gains	(114)	(167)
Gross Unrealized Losses	0	0
Fair Value	$ 15,533	$ 15,629
Percent of Total Fair Value	4.00%	3.80%
Other asset-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 15,893	$ 10,051
Gross Unrealized Gains	0	0
Gross Unrealized Losses	174	285
Fair Value	$ 15,719	$ 9,766
Percent of Total Fair Value	4.10%	2.40%