Consolidated Statements of Changes in Net Assets (Liquidation Basis) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements of Changes in Net Assets (Liquidation Basis) [Abstract]
Net assets on liquidation basis at beginning of period	$ 43,256	$ 44,333
Changes in fair value of net assets in liquidation
Adjust net assets to fair value	13	(15)
Increase in estimated net costs to be incurred during liquidation	(242)	(288)
Adjust estimated income to be earned during liquidation		2
Net assets on liquidation basis at end of period	$ 43,027	$ 44,032