v3.26.1
Note 3 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Revenue $ 2,134 $ 2,028 $ 3,739 $ 4,222
Oil Sales[Member]        
Revenue 2,034 1,844 3,411 3,615
Natural Gas, Midstream [Member]        
Revenue 100 184 328 607
Rockies [Member]        
Revenue 1,841 1,374 3,205 2,800
Rockies [Member] | Oil Sales[Member]        
Revenue 1,831 1,340 3,152 2,697
Rockies [Member] | Natural Gas, Midstream [Member]        
Revenue 10 34 53 103
Mid-Continent [Member]        
Revenue 293 654 534 1,422
Mid-Continent [Member] | Oil Sales[Member]        
Revenue 203 504 259 917
Mid-Continent [Member] | Natural Gas, Midstream [Member]        
Revenue $ 90 $ 150 $ 275 $ 505