Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.6.0.2
Related Party Transactions (Details)
$ in Thousands
 6 Months Ended 25 Months Ended
Mar. 31, 2016
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2016
AUD
Dec. 01, 2014
owner
CO2 Business          
Related Party Transaction [Line Items]          
Ownership percentage, sold in period 100.00%        
Series A Preferred Stock          
Related Party Transaction [Line Items]          
Percent of shares transferred 100.00%        
Utah CO2 LLC | MI4 Oil and Gas LLC          
Related Party Transaction [Line Items]          
Number of noncontrolling interest owners | owner         1
Devizes International Consulting Limited | Affiliated Entity          
Related Party Transaction [Line Items]          
Amount of transaction   $ 50 $ 31    
MPA | Director | Compensation Arrangement          
Related Party Transaction [Line Items]          
Amount of transaction | AUD       AUD 5,400  
MI3 Petroleum Engineering | Affiliated Entity | Compensation Arrangement          
Related Party Transaction [Line Items]          
Amount of transaction     292    
MI3 Petroleum Engineering | Affiliated Entity | Compensation Arrangement | Discontinued Operations          
Related Party Transaction [Line Items]          
Amount of transaction   $ 0 $ 292