Annual report pursuant to Section 13 and 15(d)

Preferred Stock (Details)

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Preferred Stock (Details) (USD $)
 0 Months Ended 12 Months Ended
May 10, 2013
Jun. 30, 2014
Jun. 30, 2013
Class of Stock [Line Items]      
Preferred stock, shares authorized   50,000,000.0  
Issuance of Series A Preferred Stock   0 19,239,734
Proceeds from issuance of preferred stock, net of $520 issuance cost   $ 0 $ 22,982,000
Shares issued upon conversion   1  
Accrued preferred stock dividends   429,000 202,000
Preferred stock dividend   1,696,000 202,000
Accrued dividends   429,000 202,000
INVESTING ACTIVITIES:      
Additions to property and equipment   (20,923,000) (2,732,000)
Proceeds from Amadeus Basin sale   18,554,000 0
Net cash used in investing activities   (2,369,000) (2,732,000)
Accretion expense of contingent consideration payable   315,000 326,000
Series A Preferred Stock
      
Class of Stock [Line Items]      
Preferred stock, shares authorized   28,000,000 28,000,000
Issuance of Series A Preferred Stock 19,239,734    
Preferred stock, par value (usd per share) $ 0.01 $ 0.01 $ 0.01
Price per share (in dollars per share) $ 1.22149381    
Proceeds from issuance of preferred stock, net of $520 issuance cost 23,500,000    
Shares issued upon conversion 1    
Dividend rate 7.00%    
Forced conversion maximum allowable amount to exceed conversion price for 20 of 30 consecutive trading days 200.00%    
Forced conversion average daily trading volume denominator 45    
Written notied for redemption period 30 days    
Redemption annualized rate of return 20.00%    
Liquidation premium until second anniversary of issuance 115.00%    
Liquidation premium after second anniversary until third anniversary of issuance 110.00%    
Liquidation premium after third anniversary until fourth anniversery of issuance 105.00%    
Preferred stock dividend   1,700,000 500,000
Accrued dividends   429,000 202,000
INVESTING ACTIVITIES:      
Accretion expense of contingent consideration payable     202,000
Series A Preferred Stock | One Stone
      
Class of Stock [Line Items]      
Maximum number of Board members with 15% ownership 2    
Maximum number of Board members with 10% ownership of fully diluted shares 1    
Minority veto rights, capital expenditures $ 15,000,000.0    
Minority veto rights, Board of DIrectors maximum members 12    
Standstill period 2 years