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Note 5 - Accrued Liabilities | 12 Months Ended
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Dec. 31, 2012
Accounts Payable and Accrued Liabilities Disclosure [Text Block] | NOTE 5 – ACCRUED LIABILITIES At December 31, 2012 and 2011, accrued liabilities consist of the following (dollars in thousands):
|  | December 31, |
|  | 2012 |  |  | 2011 |
Payroll, bonus, and benefits |  | $ | 160 |  |  | $ | 150 |
Well-field, environmental studies, legal and consulting |  |  | 884 |  |  |  | 716 |
Stock-based compensation |  |  | 67 |  |  |  | 27 |
Other accrued expenses |  |  | 284 |  |  |  | 156 |
|  | $ | 1,395 |  |  | $ | 1,049 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 + Details
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