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Quarterly Financial Data (Details) (USD $)
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3 Months Ended | 12 Months Ended | |||||||||||
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Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2014
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Jun. 30, 2013
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| Selected Quarterly Financial Information [Abstract] | |||||||||||||
| Revenue from oil production | $ 1,928,000 | $ 1,907,000 | $ 1,632,000 | $ 2,134,000 | $ 1,523,000 | $ 1,706,000 | $ 1,442,000 | $ 1,460,000 | $ 7,601,000 | $ 6,131,000 | |||
| Total operating expenses | 4,000,000 | 4,311,000 | 5,047,000 | 6,591,000 | 4,479,000 | 6,515,000 | 7,319,000 | 6,101,000 | 19,949,000 | 24,414,000 | |||
| Loss from continuing operations | 705,000 | [1] | (2,813,000) | (3,437,000) | (4,497,000) | (2,952,000) | (3,726,000) | (5,746,000) | (4,405,000) | (10,042,000) | (16,829,000) | ||
| Net (loss) income per basic common share from continuing operations (usd per share) | $ 0.01 | $ (0.07) | $ (0.09) | $ (0.11) | $ (0.08) | $ (0.08) | $ (0.11) | $ (0.08) | $ (0.26) | $ (0.35) | |||
| Net (loss) income per diluted common share outstanding from continuing operations (usd per share) | $ 0.01 | $ (0.07) | $ (0.09) | $ (0.11) | $ (0.08) | $ (0.08) | $ (0.11) | $ (0.08) | $ (0.26) | $ (0.35) | |||
| Net (loss) income attributable to common stockholders | (493,000) | 24,089,000 | (4,533,000) | (5,250,000) | (1,064,000) | (4,332,000) | (9,783,000) | (5,310,000) | 13,813,000 | (20,489,000) | |||
| Net (loss) income per basic common share outstanding attributable to common stockholders (usd per share) | $ (0.01) | $ 0.53 | $ (0.10) | $ (0.12) | $ (0.04) | $ (0.09) | $ (0.18) | $ (0.10) | $ 0.30 | $ (0.41) | |||
| Net (loss) income per diluted common share outstanding attributable to common stockholders (usd per share) | $ (0.01) | $ 0.53 | $ (0.10) | $ (0.12) | $ (0.04) | $ (0.09) | $ (0.18) | $ (0.10) | $ 0.30 | $ (0.41) | |||
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Amadeus Basin
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| Selected Quarterly Financial Information [Abstract] | |||||||||||||
| Gain on sale of assets | 30,000,000 | ||||||||||||
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Nautilus Poplar, LLC (NP)
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| Selected Quarterly Financial Information [Abstract] | |||||||||||||
| Revenue from oil production | 7,601,000 | 6,131,000 | |||||||||||
| Loss from continuing operations | 1,828,000 | (326,000) | |||||||||||
| Other Income | $ 2,100,000 | ||||||||||||
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| X | ||||||||||
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- Definition
The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate revenue during the period related to oil and gas business activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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| X | ||||||||||
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- Definition
Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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