v3.26.1
Note 9 - Shareholders' Equity (Details Textual) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 10, 2026
Mar. 04, 2026
Oct. 09, 2025
Jan. 27, 2025
Jan. 23, 2025
Jan. 22, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2017
Dec. 31, 2025
Jan. 29, 2025
Common Stock, Shares Authorized (in shares)             245,000,000     245,000,000     245,000,000  
Preferred Stock, Shares Authorized (in shares)             5,000,000     5,000,000     5,000,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)                   (0)        
Stock Repurchased During Period, Shares (in shares)             0 72,000   0 197,000      
Stock Repurchased During Period, Value             $ 0 $ 83,000 $ 234,000 $ 0 $ 316,000      
Share Repurchase Program, Weighted Average Price Per Share (in dollars per share)             $ 0 $ 1.153   $ 0 $ 1.61      
Equity Agreement, Shares Available (in shares)             15,328,477     15,328,477        
Equity Agreement, Amount Available             $ 15,900,000     $ 15,900,000        
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)                   10 years        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)             3,534,000     3,534,000     16,500  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in dollars per share)             $ 1.15     $ 1.15     $ 10  
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted-Average Remaining Contractual Term (Year)                   1 year 3 months 18 days        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   3,517,500               3,517,500        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in dollars per share)   $ 1.11               $ 0        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)   $ 0.77               $ 0.77        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Grant Date Fair Value   $ 2,700,000                        
Stock Repurchase Program, Authorized Amount                           $ 5,000,000
Share-Based Payment Arrangement, Option [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year)                   6 years 1 month 6 days        
Share-Based Payment Arrangement, Expense             $ 501,000 $ 0   $ 696,000 $ 0      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount             2,000,000     $ 2,000,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)                   2 years 3 months 18 days        
Restricted Stock [Member]                            
Share-Based Payment Arrangement, Expense             400,000 $ 1,000,000   $ 400,000 $ 1,000,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount             $ 700,000     $ 700,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)                   1 year 1 month 6 days        
Minimum [Member] | Share-Based Payment Arrangement, Option [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year)                   5 years 4 months 24 days        
Maximum [Member] | Share-Based Payment Arrangement, Option [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year)                   6 years 10 months 24 days        
Share-Based Payment Arrangement, Tranche One [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   1,380,000                        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)   10 months                        
Share-Based Payment Arrangement, Tranche Two [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   1,500,000                        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)   4 years                        
Share-Based Payment Arrangement, Tranche Three [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   637,500                        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Month)   2 years                        
The 2012 Equity Plan [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)                         16,500  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)                       16,500    
Banner Oil & Gas, LLC [Member]                            
Stock Repurchased During Period, Shares (in shares)       534,020                    
Woodford Petroleum, LLC [Member]                            
Stock Repurchased During Period, Shares (in shares)       41,229                    
Sage Road Energy II, LP [Member]                            
Stock Repurchased During Period, Shares (in shares)       60,151                    
Related Party [Member]                            
Stock Repurchased During Period, Value       $ 1,574,000                    
Share Repurchase Program, Weighted Average Price Per Share (in dollars per share)       $ 2.48                    
Sage Road Capital, LLC [Member]                            
Payments to Acquire Investments         $ 1,574,000                  
Underwriting Agreement [Member]                            
Stock Issued During Period, Shares, New Issues (in shares) 8,800,000       4,871,400 4,871,400                
Shares Issued, Price Per Share (in dollars per share) $ 1         $ 2.65                
Proceeds from Issuance of Common Stock $ 8,100,000       $ 11,900,000                  
Equity Offering, Commission, Percentage of Closing Sales Price       8.20%                    
Over-Allotment Option [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)         635,400                  
Common Stock Purchase Agreement [Member]                            
Stock Issued During Period, Shares, New Issues (in shares)                   8,548,382,000,000        
Equity Agreement, Maximum Amount     $ 25,000,000                      
Equity Agreement, Discount on Stock Price, Percent     2.50%                      
Equity Agreement, Shares Available (in shares)     7,123,382                      
Equity Agreement, Outstanding Shares, Percent     19.99%                      
Equity Agreement, Beneficial-Ownership Blocker, Percent     4.99%                      
Equity Agreement, Structuring Fee     $ 25,000                      
Stock Issued During Period, Shares, Issued as a Partial Commitment Fee (in shares)     223,141                      
Stock Issued During Period, Value, Issued as a Partial Commitment Fee     $ 270,000                      
Equity Agreement, Cash Commitment Fee     $ 180,000                      
Proceeds From Issuance or Sale of Equity, Net of Issuance Costs                   $ 9,100,000