Description of Business and Basis of Presentation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Production taxes	$ 4,133	$ 3,224	$ 2,062
Restatement Adjustment [Member]
Production taxes		$ 3,224	$ 2,062

A tax assessed on oil and gas production.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 4

-Article 5

Name:	us-gaap_ProductionTaxExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration