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Note 12 - Related Party Transactions (Details) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended |  | 6 Months Ended
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Feb. 27, 2012 Payment [Member] Communal [Member] | Jun. 30, 2013 Payment [Member] Communal [Member] | Jan. 31, 2013 Additional Commited Payment [Member] Communal [Member] | Jun. 30, 2013 5 Elements Efficienties (BVI) Ltd [Member] | Aug. 11, 2011 Chief Financial Officer [Member] | Jun. 30, 2013 Communal [Member]
Note 12 - Related Party Transactions (Details) [Line Items] |  |  |  |  |  |
Letters of Credit Outstanding, Amount |  |  |  |  | $ 250 |
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest |  |  |  | 50.00% |  |
Related Party Transaction, Amounts of Transaction | 523 | 175 | 425,000 |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  |  |  |  | $ 113

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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