Bank Loans (Schedule Of The Allowances For Loan Losses By Type) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Allowance for loan losses	$ 8,145	$ 5,300
Percentage of loan allowance losses	100.00%	100.00%
Commercial And Industrial [Member]
Allowance for loan losses	5,450	2,595
Percentage of loan allowance losses	36.40%	29.30%
Residential Real Estate [Member]
Allowance for loan losses	691	633
Percentage of loan allowance losses	1.50%	0.50%
Commercial Real Estate [Member]
Allowance for loan losses	647	510
Percentage of loan allowance losses	51.60%	58.20%
Consumer [Member]
Allowance for loan losses	408	679
Percentage of loan allowance losses	8.00%	8.10%
Home Equity Lines Of Credit [Member]
Allowance for loan losses	195
Percentage of loan allowance losses	2.40%
Construction And Land [Member]
Allowance for loan losses	13
Percentage of loan allowance losses	0.10%
Unallocated [Member]
Allowance for loan losses	$ 741	$ 883
Percentage of loan allowance losses		3.90%