Quarterly report pursuant to Section 13 or 15(d)

One Stone Exchange (Details)

v3.6.0.2
One Stone Exchange (Details) - USD ($)
$ in Thousands
Aug. 01, 2016
Apr. 15, 2016
Mar. 31, 2016
Dec. 31, 2016
Jun. 30, 2016
Related Party Transaction [Line Items]          
Contribution to equity $ 9,900        
Notes payable       $ 31 $ 783
PIK dividends (in shares) 22,815,748        
PBOs and MBOs          
Related Party Transaction [Line Items]          
Share-based compensation expense (reversal of expense) $ 369        
Investor | One Stone | One Stone Exchange Agreement          
Related Party Transaction [Line Items]          
Cash amount received $ 900        
Transaction costs       $ 968 690
Estimated amount due         $ 1,200
Notes payable   $ 625      
Basis spread on variable rate   1.00%      
Interest rate 4.50%        
Director | One Stone | One Stone Exchange Agreement          
Related Party Transaction [Line Items]          
Outstanding amount forgiven $ 174        
Nautilus Poplar, LLC (NP) | One Stone | One Stone Exchange Agreement          
Related Party Transaction [Line Items]          
Ownership percentage, sold in period     100.00%    
Utah CO2 LLC | One Stone | One Stone Exchange Agreement          
Related Party Transaction [Line Items]          
Ownership percentage, sold in period     51.00%    
Series A Preferred Stock          
Related Party Transaction [Line Items]          
Percent of shares transferred     100.00%    
Series A Preferred Stock | One Stone | One Stone Exchange Agreement          
Related Party Transaction [Line Items]          
Percent of shares transferred     100.00%