Business divestiture closing date.

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- Definition

Business divestiture effective date of divestiture.

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- Definition

Business divestitures sale price.

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- Definition

Gain (loss) on exchange of oil and gas properties.

+ References

No definition available.

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- Definition

Number of non-operated wells working interest exchanged

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- Definition

Percent of interest swapped to assets.

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No definition available.

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- Definition

Percent of net assets owned through swap.

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No definition available.

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- Definition

Production barrels of oil equivalents per day.

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No definition available.

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- Definition

Undivided interest acquired in producing wells.

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No definition available.

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- Definition

Area of land held.

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No definition available.

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- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
-Paragraph 28
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- Definition

Fractional interest owned based on working interests or other economic arrangements of area spaced or assigned to productive wells.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (a)

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Accumulated impairment of oil and gas property carried under the successful effort method.

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- Definition

The cash outflow for acquisition of land for use; excludes purchases of land held as inventory or as investments.

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- Definition

The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale.

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The total number of producing oil wells and oil wells capable of production, in which the entity owns a fractional working interest.

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-Publisher SEC
-Name Regulation S-K (SK)
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Acquisitions and Divestitures - Additional Information (Details)				1 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended
	Sep. 26, 2016 USD ($)	Aug. 02, 2016 USD ($) a Well shares	Jun. 15, 2016 USD ($)	Jan. 31, 2015 USD ($) a Well	Jun. 30, 2016 a Boe	Mar. 31, 2016 USD ($) a	Jun. 30, 2016 USD ($) a	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($)	Aug. 01, 2016 a
Business Acquisition [Line Items]
Purchase and sale agreement date	Sep. 26, 2016
Business divestitures sale price	$ 14,000,000		$ 2,200,000
Business divestiture closing date	Oct. 31, 2016
Impairment of oil and gas properties										$ 29,100,000
Acquisition of oil and gas properties								$ 4,340,000	$ 8,723,000
Gain (loss) on divestitures of business			$ 1,900,000					$ 74,000
Business divestiture effective date of divestiture							Jul. 01, 2016
Production related to property barrels of oil equivalents per day \| Boe					86
Loss on exchange of oil and gas properties				$ (629,000)
Number of non-operated wells working interest exchanged \| Well				2
Carter Lake - Wildcat Area
Business Acquisition [Line Items]
Net mineral acres \| a											1,110
Percentage of interest through swap		50.00%
La Salle
Business Acquisition [Line Items]
Payments to acquire land						$ 770,000
Area of land acquired \| a						220
La Salle \| Eagle Ford Shale
Business Acquisition [Line Items]
Payments to acquire land				$ 500,000
Area of land acquired \| a				159
Gonzales
Business Acquisition [Line Items]
Payments to acquire land							$ 1,600,000
Area of land acquired \| a					1,088		1,088
Juneau Energy, LLC \| Brazos County
Business Acquisition [Line Items]
Purchase and sale agreement date		Aug. 02, 2016
Net mineral acres \| a		1,300
Acquisition of oil and gas properties		$ 5,500,000
Productive Oil Wells, Number of Wells \| Well		2
Undivided interest acquired in producing wells		50.00%
Percentage of investment in assets		50.00%
Juneau Energy, LLC \| Brazos County \| Common Class A
Business Acquisition [Line Items]
Shares of common stock payable in total purchase \| shares		500,227