INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 393,831	$ 411,424
Gross Unrealized Gains	(2,793)	(1,812)
Gross Unrealized Losses	1,017	2,215
Fair Value	395,607us-gaap_AvailableForSaleSecurities	411,021us-gaap_AvailableForSaleSecurities
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	22,648	29,973
Gross Unrealized Gains	(12)	(8)
Gross Unrealized Losses	69	211
Fair Value	22,591	29,770
Percent of Total Fair Value	5.70%	7.20%
Total municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	60,132	49,959
Gross Unrealized Gains	(258)	(190)
Gross Unrealized Losses	82	121
Fair Value	60,308	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	16,524	16,565
Gross Unrealized Gains	(89)	(65)
Gross Unrealized Losses	10	52
Fair Value	16,603	16,578
Percent of Total Fair Value	4.20%	4.00%
Tax exempt municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	43,608	33,394
Gross Unrealized Gains	(169)	(125)
Gross Unrealized Losses	72	69
Fair Value	43,705	33,450
Percent of Total Fair Value	11.00%	8.20%
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,000	5,000
Gross Unrealized Gains	(41)	(18)
Gross Unrealized Losses	0	0
Fair Value	5,041	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	280,563	300,979
Gross Unrealized Gains	(2,311)	(1,429)
Gross Unrealized Losses	707	1,598
Fair Value	282,167	300,810
Percent of Total Fair Value	71.30%	73.20%
1-4 residential agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	47,569	48,001
Gross Unrealized Gains	(893)	(758)
Gross Unrealized Losses	161	240
Fair Value	48,301	48,519
Percent of Total Fair Value	12.20%	11.80%
1-4 residential other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	544	675
Gross Unrealized Gains	(31)	(38)
Gross Unrealized Losses	0	0
Fair Value	575	713
Percent of Total Fair Value	0.10%	0.20%
Multifamily agency guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	221,970	241,800
Gross Unrealized Gains	(1,217)	(627)
Gross Unrealized Losses	546	1,346
Fair Value	222,641	241,081
Percent of Total Fair Value	56.30%	58.70%
Multifamily other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,480	10,503
Gross Unrealized Gains	(170)	(6)
Gross Unrealized Losses	0	12
Fair Value	10,650	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	25,488	25,513
Gross Unrealized Gains	(171)	(167)
Gross Unrealized Losses	159	285
Fair Value	25,500	25,395
Percent of Total Fair Value	6.50%	6.20%
SLMA [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,440	15,462
Gross Unrealized Gains	(171)	(167)
Gross Unrealized Losses	0	0
Fair Value	15,611	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	10,048	10,051
Gross Unrealized Gains	0	0
Gross Unrealized Losses	159	285
Fair Value	$ 9,889	$ 9,766
Percent of Total Fair Value	2.50%	2.40%

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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