Quarterly report pursuant to Section 13 or 15(d)

Related Parties Transactions (Details)

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Related Parties Transactions (Details)
$ in Thousands
 3 Months Ended 4 Months Ended
Sep. 30, 2015
USD ($)
owner
Sep. 30, 2014
USD ($)
Mar. 31, 2015
AUD
Devizes International Consulting Limited | Affiliated Entity      
Related Party Transaction [Line Items]      
Amount of transaction $ 25 $ 81  
MPA | Compensation Arrangement | Director      
Related Party Transaction [Line Items]      
Amount of transaction | AUD     AUD 5,400
MI3 | Compensation Arrangement | Affiliated Entity      
Related Party Transaction [Line Items]      
Amount of transaction $ 123    
Utah CO2 LLC | MI4 Oil and Gas LLC      
Related Party Transaction [Line Items]      
Number of noncontrolling interest owners | owner 1