Schedule of assets allocated and non allocated to segments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Total assets	$ 57,687	$ 61,310	$ 60,932
Unallocated Amount to Segment [Member]
Total assets	33,002		33,583
Asset Liquidation Segment [Member]
Total assets	24,685		27,349
Reportable Segments [Member]
Total assets	$ 24,685		$ 27,349