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Goodwill - Narratives (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Aug. 08, 2014
Goodwill
Weighted percentage assigned to each approach for valuation of goodwill (percent)		50.00%
Goodwill impairment loss	$ 3,700,000	$ 3,738,000	$ 0	$ 0
Goodwill	$ 0	0	$ 3,738,000
Goodwill acquired during year		$ 0		$ 0
August 2014 MidCon Acquisition
Goodwill
Goodwill					$ 3,738,000

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- Definition

The weighted percentage assigned to each approach used in valuation of goodwill.

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB
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-SubTopic 20
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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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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