Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.4.0.3
Basis of Presentation (Details)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
shares
Mar. 31, 2016
USD ($)
shares
Mar. 31, 2015
USD ($)
Mar. 31, 2016
USD ($)
segment
shares
Mar. 31, 2016
USD ($)
shares
Mar. 31, 2016
USD ($)
reporting_unit
shares
Mar. 31, 2015
USD ($)
Jun. 30, 2015
USD ($)
segment
May. 10, 2016
Jun. 30, 2014
USD ($)
Mar. 31, 2014
Schedule of Equity Method Investments [Line Items]                      
Net loss from operations   $ 1,638 $ 2,560   $ 4,719   $ 7,393        
Cash and cash equivalents $ 131 $ 131 $ 2,891 $ 131 131 $ 131 2,891 $ 769   $ 16,120  
Impairment of wells in progress         $ 0   $ 20        
Shares issued upon conversion | shares 1 1   1 1 1          
Number of operating segments | segment       2              
Number of reportable segments       2   2   3      
One Stone Exchange Agreement                      
Schedule of Equity Method Investments [Line Items]                      
Impairment of proved oil and gas properties   $ 7,800                  
Impairment of wells in progress   $ 3,400                  
Central Petroleum Limited                      
Schedule of Equity Method Investments [Line Items]                      
Ownership percentage 1.90% 1.90%   1.90% 1.90% 1.90%         11.00%
Series A Preferred Stock                      
Related Party Transaction [Line Items]                      
Percent of shares transferred 100.00%                    
Subsequent Event | Central Petroleum Limited                      
Schedule of Equity Method Investments [Line Items]                      
Ownership percentage                 1.90%    
Nautilus Poplar, LLC (NP)                      
Related Party Transaction [Line Items]                      
Percent of shares sold in period 100.00%