Loans Receivable, Allowance For Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Summary of allowance for loan losses [Abstract]
Beginning Balance	$ 24,097	$ 31,103	$ 25,938	$ 29,871
Provision	0	850	465	4,471
Charge-offs	(917)	(1,595)	(3,333)	(3,984)
Recoveries	0	0	110	0
Ending Balance	23,180	30,358	23,180	30,358
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	11,730	14,542	11,730	14,542
Loans collectively evaluated for impairment	11,450	15,816	11,450	15,816
Past due period after which accrual of interest on loans is discontinued			90 days
Residential Mortgage [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	11,662	13,394	12,303	16,339
Provision	(259)	512	544	(900)
Charge-offs	(202)	(388)	(1,646)	(1,921)
Recoveries	0	0	0	0
Ending Balance	11,201	13,518	11,201	13,518
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	5,261	6,514	5,261	6,514
Loans collectively evaluated for impairment	5,940	7,004	5,940	7,004
Acquisition and Development [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	1,962	6,868	3,916	3,997
Provision	(164)	(23)	(1,656)	3,436
Charge-offs	(322)	(153)	(784)	(741)
Recoveries	0	0	0	0
Ending Balance	1,476	6,692	1,476	6,692
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	1,020	3,532	1,020	3,532
Loans collectively evaluated for impairment	456	3,160	456	3,160
Land [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	4,536	3,679	2,405	4,225
Provision	(723)	(431)	1,724	(760)
Charge-offs	(393)	(594)	(709)	(811)
Recoveries	0	0	0	0
Ending Balance	3,420	2,654	3,420	2,654
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	1,487	1,600	1,487	1,600
Loans collectively evaluated for impairment	1,933	1,054	1,933	1,054
Lines of Credit [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	239	395	725	458
Provision	(17)	11	(503)	(52)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	222	406	222	406
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	177	150	177	150
Loans collectively evaluated for impairment	45	256	45	256
Commercial Real Estate [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	3,344	4,298	4,157	3,949
Provision	154	485	(465)	871
Charge-offs	0	(460)	(194)	(497)
Recoveries	0	0	0	0
Ending Balance	3,498	4,323	3,498	4,323
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	548	1,055	548	1,055
Loans collectively evaluated for impairment	2,950	3,268	2,950	3,268
Commercial Non-Real Estate [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	198	391	169	131
Provision	975	431	894	691
Charge-offs	0	0	0	0
Recoveries	0	0	110	0
Ending Balance	1,173	822	1,173	822
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	1,103	159	1,103	159
Loans collectively evaluated for impairment	70	663	70	663
Home Equity [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	2,134	1,325	2,257	762
Provision	35	(132)	(88)	443
Charge-offs	0	0	0	(12)
Recoveries	0	0	0	0
Ending Balance	2,169	1,193	2,169	1,193
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	2,114	791	2,114	791
Loans collectively evaluated for impairment	55	402	55	402
Consumer [Member]
Summary of allowance for loan losses [Abstract]
Beginning Balance	22	753	6	10
Provision	(1)	(3)	15	742
Charge-offs	0	0	0	(2)
Recoveries	0	0	0	0
Ending Balance	21	750	21	750
Ending balance related to: [Abstract]
Loans individually evaluated for impairment	20	741	20	741
Loans collectively evaluated for impairment	$ 1	$ 9	$ 1	$ 9