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Acquisition and Expansion of Heritage Global Partners, Inc. (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 6 Months Ended | 1 Months Ended |
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Jun. 30, 2013 | Jun. 30, 2012 | Feb. 29, 2012 Heritage Global Partners, Inc [Member] | Jun. 30, 2013 Heritage Global Partners, Inc [Member]
Business Acquisition, Percentage of Voting Interests Acquired |  |  | 100.00% |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares |  |  | 1,000,000 |
Business Acquisition Options Issued Number Of Options Issued |  |  | 625,000 |
Weighted Average Exercise Price, Granted (in dollars per share) | $ 1.00 | $ 2.04 | $ 2 |
Allowance for Doubtful Accounts Receivable |  |  | $ 0 | $ 0
Net Cash Paid for Business Acquisition | $ 0 | $ 2,344 | $ 2,344 |
Debt Instrument, Maturity Date |  |  | Aug. 31, 2012 |
Fair Value Assumptions, Expected Volatility Rate |  |  | 133.00% |
Fair Value Assumptions, Risk Free Interest Rate |  |  | 1.25% |
Fair Value Assumptions, Expected Term |  |  | 4 years 9 months |
Fair Value Assumptions, Expected Dividend Rate |  |  | 0.00% |

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