Bank Loans (Changes In The Allowance For Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2011	Jun. 30, 2012
Allowance for loan losses, beginning of period	$ 8,145			$ 5,300
Provision for loan losses	8,842	3,004	2,925
Total charge-offs			(10)
Recoveries			54
Allowance for loan losses, end of period	12,668		5,300	5,300
Residential Real Estate [Member]
Charge-offs		(3,864)
Commercial Real Estate [Member]
Charge-offs			(5)
Other Loans [Member]
Charge-offs		(7)
Commercial And Industrial [Member]
Charge-offs			$ (5)