Loans Recievable (Loan To Value Ratios Of Residential Loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Less Than Or Equal To 60% [Member] | Maximum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	60.00%
60.1% - 70% [Member] | Minimum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	60.10%
60.1% - 70% [Member] | Maximum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	70.00%
70.1% - 80% [Member] | Minimum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	70.10%
70.1% - 80% [Member] | Maximum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	80.00%
80.1% - 90% [Member] | Minimum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	80.10%
80.1% - 90% [Member] | Maximum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	90.00%
More Than 90% [Member] | Minimum [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Percentage of loan to value ratio	90.00%
Residential-Interest Only [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	$ 15,117	[1]	$ 17,798	[2]
Residential-Interest Only [Member] | Less Than Or Equal To 60% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	412	[1]	413	[2]
Residential-Interest Only [Member] | 60.1% - 70% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	392	[1]	945	[2]
Residential-Interest Only [Member] | 70.1% - 80% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	1,247	[1]	1,082	[2]
Residential-Interest Only [Member] | 80.1% - 90% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	2,623	[1]	1,584	[2]
Residential-Interest Only [Member] | More Than 90% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	10,443	[1]	13,774	[2]
Residential-Amortizing [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	30,352	[1]	36,999	[2]
Residential-Amortizing [Member] | Less Than Or Equal To 60% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	8,436	[1]	6,762	[2]
Residential-Amortizing [Member] | 60.1% - 70% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	2,940	[1]	1,922	[2]
Residential-Amortizing [Member] | 70.1% - 80% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	4,292	[1]	4,044	[2]
Residential-Amortizing [Member] | 80.1% - 90% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	4,557	[1]	5,300	[2]
Residential-Amortizing [Member] | More Than 90% [Member]
Loan To Value Ratio Of Residential Loan [Line Items]
Gross loans, by loan to value ratio as of the loan origination date	$ 10,127	[1]	$ 18,971	[2]

[1] Loan-to-value ratios for the majority of the portfolio were obtained during the second quarter of 2013 based on broker price opinions.

[2] Loan-to-value ratios for the majority of the portfolio were obtained during the fourth quarter of 2012 based on broker price opinions.