Fair Value Measurements (Details 5) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Difference between fair values and the aggregate contractual amounts
Loan Securities Carried at Fair Value Disclosure	$ 5,385
Loan Securities Maturity Amount	7,494
Loan Securities Difference Between Fair Values and the Aggregate Contractual Amounts	$ 2,109

Loan securities difference between fair values and the aggregate contractual amounts.

No definition available.

Name:	fur_LoanSecuritiesDifferenceBetweenFairValuesAndAggregateContractualAmounts
Namespace Prefix:	fur_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant