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Note 9 - Discontinued Operations (Details) - Discontinued Operations Balance Sheet - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Discontinued Operations Balance Sheet [Abstract] |  |  |
Property |  | $ 450 | $ 600
Total assets held for sale |  | 450 | 600
Current assets |  |  |
Other assets |  | 22 | 20
Total current assets |  | 22 | 20
Long-term assets |  |  |
Property, plant and equipment, net (1) | [1] | 81 | 81
Total long-term assets |  | 81 | 81
Total assets not held for sale |  | 103 | 101
Current liabilities |  |  |
Accounts payable |  | 915 | 947
Accrued expenses and other liabilities |  | 500 | 462
Environmental liabilities |  | 627 | 728
Total current liabilities |  | 2,042 | 2,137
Long-term liabilities |  |  |
Closure liabilities |  | 306 | 302
Environmental liabilities |  | 369 | 288
Total long-term liabilities |  | 675 | 590
Total liabilities not held for sale |  | $ 2,717 | $ 2,727
[1] | Net of accumulated depreciation of $10,000 for each period presented.

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