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Note 7 - Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 1 Months Ended | 0 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2013 Colombia [Member] Portfolio Reduction [Member] | Jun. 30, 2013 Colombia [Member] Impairment Based on Ratio of Historical Reductions to Portfolio Value [Member] | Dec. 31, 2012 Colombia [Member] | Jun. 30, 2013 Warehouse, Land and Other Improvements Located in Fort Payne, Alabama [Member]
Note 7 - Other Current Assets (Details) [Line Items] |  |  |  |  |
Asset Impairment Charges |  | $ 143 | $ 75 |  | $ 42
Transfer from Investments |  |  |  | 1,743 |
Proceeds from Investment Fund Liquidation | 694 |  |  |  |
Restricted Investments | 840 |  |  |  |
Restricted Investments, Current | $ 166 |  |  |  |

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