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Note 18 - Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract] |
Long-term Purchase Commitment [Table Text Block] |
December 31 |  | Amount
2016 |  |  | 62,365,151 |
2017 |  |  | 145,824,000 |
|  |  | 208,189,151 |

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- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration