XML 36 R50.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stockholders' Equity - Narrative (Details) (USD $)
 3 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2014
Series A Cumulative Preferred Stock
Jun. 30, 2013
Series A Cumulative Preferred Stock
Jun. 30, 2012
Series A Cumulative Preferred Stock
Sep. 06, 2012
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
Common Stock
Aug. 31, 2011
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
Common Stock
Jun. 30, 2014
Restricted Stock
Sep. 06, 2012
Restricted Stock
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
Aug. 31, 2011
Restricted Stock
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
Dec. 05, 2013
Outside Directors
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
Common Stock
Dec. 05, 2011
Outside Directors
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
Common Stock
Dec. 05, 2013
Outside Directors
Restricted Stock
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
item
Dec. 06, 2012
Outside Directors
Restricted Stock
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
item
Dec. 05, 2011
Outside Directors
Restricted Stock
Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan
item
Jun. 30, 2012
Weighted Average
Series A Cumulative Preferred Stock
Jun. 30, 2012
Public Offering
Series A Cumulative Preferred Stock
Jun. 30, 2012
At the Market Offering
Series A Cumulative Preferred Stock
Class of Stock [Line Items]                                            
Recovery of Short Swing Profits       $ 6,850                                    
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]                                            
Issuance of restricted common stock (shares)                   154,227 161,861       16,476 34,245   31,970        
Restricted stock compensation not yet recognized                       997,403 1,223,020 1,029,436                
Recognition period for restricted stock compensation expense not yet recognized                       2 years 1 month 6 days 4 years 4 years                
Directors receiving award, number                                 5 5 5      
Issuance of restricted common stock       0 32 34                 200,019 249,955   249,973        
Restricted stock vesting period                                 1 year 1 year 1 year      
Common shares issued during period for share based compensation (shares)       1,568,832                                    
Proceeds from the exercise of stock options       3,252,801 70,719 0                                
Stock issued, nonqualified stock options and incentive warrants noncash (shares)       2,635,696                                    
Shares received in lieu of cash payment (shares)       50,956                                    
Shares received in lieu of cash payment, average cost of shares (in USD per share)       $ 12.14                                    
Dividends paid       9,723,833                                    
Cash dividends paid (per common share) $ 0.10 $ 0.10 $ 0.10                                      
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]                                            
Issuance of preferred stock (in shares)                 317,319                       220,000 97,319
Proceeds from issuance of preferred stock, net       0 0 6,930,535     6,930,535                          
Cumulative Preferred Stock (as a percent)             8.50% 8.50% 8.50%                          
Share Price                                       $ 23.80    
Preferred stock, liquidation preference (in dollars per share)             $ 25 $ 25.00 $ 25.00                          
Preferred Stock, Dividend Rate, Per-Dollar-Amount                 $ 0.177083                          
Payments of Ordinary Dividends, Preferred Stock and Preference Stock       674,302 674,302 630,391 674,302 674,302 630,391                          
Treasury Stock, Number of Shares and Restriction Disclosures [Abstract]                                            
Treasury stock retired (shares)       801,889                                    
Treasury stock retired, value       1,019,840                                    
Purchases of treasury stock (shares)       186,714                                    
Treasury stock acquired, average cost (in USD per share)       $ 12.18                                    
Purchases of treasury stock       $ 2,273,857 $ 137,818