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Note 12 - Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2015
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |
|  | 2015 |  |  | 2014 |
Salaries, wages, employment taxes and withholdings |  | $ | 2,226 |  |  | $ | 2,758 |
Employee benefit plans |  |  | 1,312 |  |  |  | 1,437 |
Accrued professional fees |  |  | 3,670 |  |  |  | 2,664 |
Income, property and other taxes |  |  | 301 |  |  |  | 2,439 |
Deferred revenue |  |  | 1,208 |  |  |  | 6,120 |
Other |  |  | 2,944 |  |  |  | 3,357 |
|  | $ | 11,661 |  |  | $ | 18,775 |

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