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Schedule of Segment Reporting Information, by Segment (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Revenues from external customers | $ 1,932 | $ 3,831 | $ 3,524 | $ 6,865 |
Earnings from equity accounted asset liquidation investments | 7 | 158 | 809 | 1,227 |
Other income (expenses) | 0 | (317) | 0 | (307) |
Interest expense | 174 | 48 | 269 | 104 |
Depreciation and amortization | 119 | 8 | 240 | 11 |
Segment income (loss) | (1,281) | (701) | (2,281) | 49 |
Asset liquidation investments | 2,803 |  | 2,803 |  | 3,618
Segment assets | 58,060 | 56,020 | 58,060 | 56,020 | 61,310
Asset Liquidation Segment [Member] |  |  |  |  |
Revenues from external customers | 1,932 | 3,831 | 3,324 | 6,865 |
Earnings from equity accounted asset liquidation investments | 7 | 158 | 809 | 1,227 |
Other income (expenses) | 0 | (318) | 0 | (308) |
Interest expense | 174 | 48 | 269 | 104 |
Depreciation and amortization | 119 | 8 | 240 | 11 |
Segment income (loss) | (932) | (160) | (1,519) | 1,065 |
Asset liquidation investments | 2,803 | 1,677 | 2,803 | 1,677 |
Segment assets | $ 25,126 | $ 20,472 | $ 25,126 | $ 20,472 |

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