Note 15 - Standby Costs	6 Months Ended
Jun. 30, 2013
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	Note 15 — Standby Costs For the three and six months ended June 30, 2013, the Company incurred $2.3 million and $3.4 million, respectively, in standby costs. During the three and six months ended June 30, 2012, the Company incurred $1.4 million and $2.6 million, respectively, in standby costs. During the three months ended June 30, 2013, the Company had one rig, the Petrex-28 rig, on standby for approximately three months, compared with one rig, the Petrex-18 rig, on standby for approximately three months for the same period in 2012. During the six months ended June 30, 2013, the Company had one rig, the Petrex-10 rig, partially or fully on standby for approximately two months and one rig, the Petrex-28 rig, partially or fully on standby for approximately five months, compared with one rig, the Petrex-18 rig, on standby for approximately six months for the same period in 2012.

The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3,6,7,9)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3, 6, 7, 9

-Article 5

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