Subsequent Events (Details) (USD $)
3 Months Ended 0 Months Ended 0 Months Ended
Jul. 31, 2014
Aug. 08, 2014
Subsequent Event [Member]
Aug. 12, 2014
Subsequent Event [Member]
President [Member]
Aug. 15, 2014
Subsequent Event [Member]
President [Member]
Share-based Compensation Award, Tranche One [Member]
Aug. 15, 2014
Subsequent Event [Member]
President [Member]
Share-based Compensation Award, Tranche One [Member]
Aug. 15, 2014
Subsequent Event [Member]
President [Member]
Share-based Compensation Award, Tranche Two [Member]
Aug. 15, 2014
Subsequent Event [Member]
President [Member]
Share-based Compensation Award, Tranche Three [Member]
Aug. 08, 2014
Subsequent Event [Member]
Anchor Point Energy, LLC [Member]
Subsequent Event [Line Items]                
Ownership acquired (percent)               100.00%
Payment for Glacier Rig and related equipment $ 700,000 $ 5,600,000            
Cash paid in severance package     $ 460,000          
Fully vested shares issued for severance (in shares)     79,655          
Shares subject to accelerated vesting (in shares)       575,000   21,250 21,250  
Exercise price of accelerated award (in dollars per share)         $ 5.35