Loans (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Beginning Allowance	$ 26,409	$ 40,530	$ 33,254	$ 41,080
Charge-Offs	(1,574)	(6,128)	(16,513)	(12,343)
Recoveries	770	611	1,263	1,038
Provisions	705	3,097	8,306	8,335
Ending Allowance	26,310	38,110	26,310	38,110
One To Four Family Residential Real Estate [Member]
Beginning Allowance	3,104	5,930	4,095	5,956
Charge-Offs	(217)	(647)	(1,539)	(2,087)
Recoveries	26	38	150	56
Provisions	83	(1,298)	290	98
Ending Allowance	2,996	4,023	2,996	4,023
Construction Loans [Member]
Beginning Allowance	46	47	63	73
Charge-Offs	0	0	0	0
Recoveries	0	0	0	0
Provisions	17	22	0	(4)
Ending Allowance	63	69	63	69
Multi Family Residential Real Estate [Member]
Beginning Allowance	2,610	1,943	2,850	2,147
Charge-Offs	0	(78)	(555)	(442)
Recoveries	122	0	122	0
Provisions	(261)	762	54	932
Ending Allowance	2,471	2,637	2,471	2,637
Commercial Real Estate [Member]
Beginning Allowance	13,914	22,444	17,640	20,208
Charge-Offs	(780)	(2,544)	(10,170)	(5,971)
Recoveries	430	185	574	497
Provisions	225	1,801	5,745	7,152
Ending Allowance	13,789	21,886	13,789	21,886
Commercial Loan [Member]
Beginning Allowance	5,156	8,290	6,576	10,871
Charge-Offs	(355)	(2,533)	(3,507)	(2,975)
Recoveries	140	342	295	374
Provisions	162	1,705	1,739	(466)
Ending Allowance	5,103	7,804	5,103	7,804
Home Equity [Member]
Beginning Allowance	1,435	1,639	1,856	1,528
Charge-Offs	(203)	(290)	(668)	(801)
Recoveries	38	35	77	56
Provisions	471	88	476	689
Ending Allowance	1,741	1,472	1,741	1,472
Consumer Loan [Member]
Beginning Allowance	144	227	174	297
Charge-Offs	(19)	(36)	(74)	(67)
Recoveries	14	11	45	55
Provisions	8	17	2	(66)
Ending Allowance	$ 147	$ 219	$ 147	$ 219