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Note 1 - Basis of Presentation (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
May 12, 2022
Mar. 31, 2022
Jun. 30, 2022
Non-employee Directors, Quarterly Cash Compensation $ 10,000    
Management Incentive Plan, Maximum Payout $ 12,000,000.0    
Discount Rate Used in Future Net Cash Flows Relating to Proved Oil and Gas Reserves   10.00%  
Restricted Stock [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     1,650,000
Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)     3 years
Performance Shares [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment, Award, Percentage of Performance Shares that are Received     0.00%
Performance Shares [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment, Award, Percentage of Performance Shares that are Received     200.00%
Employee LTIP [Member] | Restricted Stock [Member] | Director 1 [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 500,000    
Employee LTIP [Member] | Restricted Stock [Member] | Director 2 [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 162,000    
Employee LTIP [Member] | Restricted Stock [Member] | Director 3 [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 178,000    
Employee LTIP [Member] | Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche One [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 33.33%    
Employee LTIP [Member] | Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche Three [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 33.33%    
Employee LTIP [Member] | Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche Two [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 33.33%    
Non-employee LTIP [Member] | Restricted Stock [Member] | Director [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 50,000    
Non-employee LTIP [Member] | Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche One [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 33.33%    
Non-employee LTIP [Member] | Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche Three [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 33.33%    
Non-employee LTIP [Member] | Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche Two [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 33.33%