v3.26.1
Note 1 - Restatement of Previously Issued Financial Statements - Summary of Effect of Errors (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash and cash equivalents $ 203,516       $ 192,829       $ 159,039               $ 203,516 $ 192,829 $ 159,039  
Restricted cash—short-term 7,936       7,815       3,957               7,936 7,815 3,957  
Total current assets 323,433       297,027                       323,433 297,027    
Restricted cash—long-term         0                         0    
Deferred income tax assets, net 2,309       5,623                       2,309 5,623    
Total assets 389,380       369,843                       389,380 369,843    
Income taxes payable 28,851       30,838                       28,851 30,838    
Current captive insurance liability         0                         0    
Current liabilities 136,026       122,334                       136,026 122,334    
Noncurrent captive insurance liability         0                         0    
Total liabilities 144,934       134,666                       144,934 134,666    
Retained earnings 136,183       120,200       92,901               136,183 120,200 92,901 $ 49,010
Total Genie Energy Ltd. stockholders’ equity 250,902       246,134                       250,902 246,134    
Total equity 244,446       235,177       $ 217,213               244,446 235,177 217,213 173,644
Total liabilities and equity 389,380       $ 369,843                       389,380 369,843    
Provision for captive insurance liability                                   0 0  
Income from operations 4,574                               27,717 44,902 55,097  
Income before income taxes                                 36,141 53,481 63,196  
Provision for income taxes                                 8,262 15,358 16,622  
Net income from continuing operations                                 27,879 38,123 46,574  
Net income (loss) 4,821                               23,715 35,216 52,983  
Net income attributable to Genie Energy Ltd. $ 4,815                               24,006 35,509 52,243  
Net income attributable to Genie Energy Ltd. common stockholders                                 24,006 35,509 51,910  
Income from continuing operations attributable to Genie Energy Ltd. common stockholders                                 $ 28,170 $ 38,416 $ 45,501  
Basic earnings per share from continuing operations attributable to Genie Energy Ltd. common stockholders (in dollars per share)                                 $ 1.07 $ 1.44 $ 1.78  
Basic earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share) $ 0.17                               0.91 1.33 2.03  
Diluted earnings per share from continuing operations attributable to Genie Energy Ltd. common stockholders (in dollars per share)                                 1.06 1.42 1.74  
Diluted earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share) $ 0.16 $ 0.25 $ 0.09 $ 0.4 $ 0.25 $ 0.39 $ 0.36 $ 0.31 $ 0.35 $ 0.53 $ 0.57 $ 0.54         $ 0.9 $ 1.31 $ 1.99  
Retained earnings       $ 120,200       $ 92,901       $ 49,010 $ 120,200 $ 92,901 $ 120,200 $ 92,901 $ 120,200 $ 92,901 $ 49,010  
Retained earnings $ 136,183       $ 120,200       $ 92,901               136,183 120,200 92,901  
Total equity 244,446       235,177       217,213               244,446 235,177 217,213 173,644
Deferred income taxes                                 3,314 (1,203) 1,380  
Changes in income tax payable                                 (1,987) 12,535 (4,275)  
Previously Reported [Member]                                        
Cash and cash equivalents   $ 109,280 $ 105,423 112,544 104,456 $ 136,295 $ 122,342 106,560         105,423 122,342 109,280 136,295   104,456    
Restricted cash—short-term   26,194 25,267 27,178 26,608 7,686 9,178 9,918         25,267 9,178 26,194 7,686   26,608    
Total current assets   238,171 230,746 238,508 227,447 227,663 216,128 227,823         230,746 216,128 238,171 227,663   227,447    
Restricted cash—long-term   70,678 70,301 70,104 69,580 47,271 46,400 45,541         70,301 46,400 70,678 47,271   69,580    
Deferred income tax assets, net   7,055 7,055 7,055 7,055 5,197 5,209 5,200         7,055 5,209 7,055 5,197   7,055    
Total assets   394,122 383,092 384,378 371,275 341,681 322,783 328,304         383,092 322,783 394,122 341,681   371,275    
Income taxes payable   10,259 7,819 13,596 9,196 12,988 9,062 9,614         7,819 9,062 10,259 12,988   9,196    
Current captive insurance liability   9,392 9,304 9,236 9,120 487 364 583         9,304 364 9,392 487   9,120    
Current liabilities   124,919 115,728 117,317 109,812 88,825 83,380 100,585         115,728 83,380 124,919 88,825   109,812    
Noncurrent captive insurance liability   70,678 70,301 70,104 69,580 47,271 46,400 45,541         70,301 46,400 70,678 47,271   69,580    
Total liabilities   205,299 195,926 196,988 191,724 141,395 133,229 148,889         195,926 133,229 205,299 141,395   191,724    
Retained earnings   78,734 73,990 73,178 64,574 81,959 73,779 66,198 60,196       73,990 73,779 78,734 81,959   64,574 60,196 49,010
Total Genie Energy Ltd. stockholders’ equity   198,807 197,039 198,006 190,508 211,099 202,078 192,856         197,039 202,078 198,807 211,099   190,508    
Total equity   188,823 187,166 187,390 179,551 200,286 189,554 179,415 184,508       187,166 189,554 188,823 200,286   179,551 184,508  
Total liabilities and equity   394,122 383,092 384,378 371,275 341,681 322,783 328,304         383,092 322,783 394,122 341,681   371,275    
Provision for captive insurance liability   465 265 645   991 640 1,036         910 1,676 1,370 2,667   33,612 45,088  
Income from operations   6,934 2,003 12,831   11,676 10,563 9,849         14,834 20,412 21,768 32,087   11,290 10,009  
Income before income taxes   9,204 3,899 14,785   14,178 12,966 11,354         18,684 24,320 27,889 38,498   19,869 18,108  
Provision for income taxes   (2,469) (1,079) (4,380)   (3,924) (3,465) (2,920)         (5,458) (6,385) (7,928) (10,309)   4,667 4,239  
Net income from continuing operations   6,735 2,820 10,405   10,254 9,501 8,434         13,226 17,935 19,961 28,189   15,202 13,869  
Net income (loss)   6,730 2,867 10,301   10,229 9,356 8,169         13,169 17,525 19,899 27,754   12,295 20,278  
Net income attributable to Genie Energy Ltd.   6,743 2,822 10,630   10,199 9,612 8,123         13,453 17,735 20,196 27,933   12,588 19,538  
Net income attributable to Genie Energy Ltd. common stockholders   6,743 2,822 10,630   10,199 9,612 8,123         13,453 17,735 20,196 27,933   12,588 19,205  
Income from continuing operations attributable to Genie Energy Ltd. common stockholders   $ 6,748 $ 2,775 $ 10,734   $ 10,224 $ 9,757 $ 8,388         $ 13,510 $ 18,145 $ 20,258 $ 28,368   $ 15,495 $ 12,796  
Basic earnings per share from continuing operations attributable to Genie Energy Ltd. common stockholders (in dollars per share)   $ 0.26 $ 0.11 $ 0.4   $ 0.38 $ 0.37 $ 0.31         $ 0.51 $ 0.68 $ 0.77 $ 1.06   $ 0.58 $ 0.5  
Basic earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share)   0.26 0.11 0.4   0.38 0.36 0.3         0.51 0.66 0.77 1.04   0.47 0.75  
Diluted earnings per share from continuing operations attributable to Genie Energy Ltd. common stockholders (in dollars per share)   0.26 0.11 0.4   0.38 0.37 0.31         0.51 0.67 0.76 1.04   0.57 0.49  
Diluted earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share)   $ 0.26 $ 0.11 $ 0.4   $ 0.38 $ 0.36 $ 0.3         $ 0.51 $ 0.65 $ 0.76 $ 1.03   $ 0.46 $ 0.74  
Retained earnings 78,734 $ 73,990 $ 73,178 $ 64,574 81,959 $ 73,779 $ 66,198 $ 60,196       49,010 $ 64,574 $ 60,196 $ 64,574 $ 60,196 64,574 $ 60,196 $ 49,010  
Retained earnings   78,734 73,990 73,178 64,574 81,959 73,779 66,198 60,196       73,990 73,779 78,734 81,959   64,574 60,196  
Total equity   188,823 187,166 187,390 179,551 200,286 189,554 179,415 184,508       187,166 189,554 188,823 200,286   179,551 184,508  
Deferred income taxes                                   (1,855) 599  
Changes in income tax payable       4,400       2,914         (1,377) 2,362 1,064 6,289   2,496 (15,877)  
Revision of Prior Period, Adjustment [Member]                                        
Cash and cash equivalents   87,522 87,092 89,273 88,373 51,177 51,512 51,837         87,092 51,512 87,522 51,177   88,373    
Restricted cash—short-term   (16,844) (16,791) (19,169) (18,793) (3,906) (5,112) (6,296)         (16,791) (5,112) (16,844) (3,906)   (18,793)    
Total current assets   70,678 70,301 70,104 69,580 47,271 46,400 45,541         70,301 46,400 70,678 47,271   69,580    
Restricted cash—long-term   (70,678) (70,301) (70,104) (69,580) (47,271) (46,400) (45,541)         (70,301) (46,400) (70,678) (47,271)   (69,580)    
Deferred income tax assets, net   (1,432) (1,432) (1,432) (1,432) (781) (781) (781)         (1,432) (781) (1,432) (781)   (1,432)    
Total assets   (1,432) (1,432) (1,432) (1,432) (781) (781) (781)         (1,432) (781) (1,432) (781)   (1,432)    
Income taxes payable   24,017 23,213 22,469 21,642 13,528 12,852 12,274         23,213 12,852 24,017 13,528   21,642    
Current captive insurance liability   (9,392) (9,304) (9,236) (9,120) (487) (364) (583)         (9,304) (364) (9,392) (487)   (9,120)    
Current liabilities   14,625 13,909 13,233 12,522 13,041 12,488 11,691         13,909 12,488 14,625 13,041   12,522    
Noncurrent captive insurance liability   (70,678) (70,301) (70,104) (69,580) (47,271) (46,400) (45,541)         (70,301) (46,400) (70,678) (47,271)   (69,580)    
Total liabilities   (56,053) (56,392) (56,871) (57,058) (34,230) (33,912) (33,850)         (56,392) (33,912) (56,053) (34,230)   (57,058)    
Retained earnings   54,621 54,960 55,439 55,626 33,449 33,131 33,069 32,705       54,960 33,131 54,621 33,449   55,626 32,705 $ 0
Total Genie Energy Ltd. stockholders’ equity   54,621 54,960 55,439 55,626 33,449 33,131 33,069         54,960 33,131 54,621 33,449   55,626    
Total equity   54,621 54,960 55,439 55,626 33,449 33,131 33,069 32,705       54,960 33,131 54,621 33,449   55,626 32,705  
Total liabilities and equity   (1,432) (1,432) (1,432) (1,432) (781) (781) (781)         (1,432) (781) (1,432) (781)   (1,432)    
Provision for captive insurance liability   (465) (265) (645)   (991) (640) (1,036)         (910) (1,676) (1,370) (2,667)   (33,612) (45,088)  
Income from operations   465 265 645   991 640 1,036         910 1,676 1,370 2,667   33,612 45,088  
Income before income taxes   465 265 645   991 640 1,036         910 1,676 1,370 2,667   33,612 45,088  
Provision for income taxes   (804) (743) (832)   (674) (577) (673)         (1,576) (1,250) (2,380) (1,924)   10,691 12,383  
Net income from continuing operations   (339) (478) (187)   317 63 363         (666) 426 (1,010) 743   22,921 32,705  
Net income (loss)   (339) (478) (187)   317 63 363         (666) 426 (1,010) 743   22,921 32,705  
Net income attributable to Genie Energy Ltd.   (339) (478) (187)   317 63 363         (666) 426 (1,010) 743   22,921 32,705  
Net income attributable to Genie Energy Ltd. common stockholders   (339) (478) (187)   317 63 363         (666) 426 (1,010) 743   22,921 32,705  
Income from continuing operations attributable to Genie Energy Ltd. common stockholders   $ (339) $ (478) $ (187)   $ 317 $ 63 $ 363         $ (666) $ 426 $ (1,010) $ 743   $ 22,921 $ 32,705  
Basic earnings per share from continuing operations attributable to Genie Energy Ltd. common stockholders (in dollars per share)   $ (0.01) $ (0.02) $ 0   $ 0.02 $ 0 $ 0.02         $ (0.02) $ 0.02 $ (0.04) $ 0.03   $ 0.86 $ 1.28  
Basic earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share)   (0.01) (0.02) 0   0.02 0 0.02         (0.02) 0.02 (0.04) 0.03   0.86 1.28  
Diluted earnings per share from continuing operations attributable to Genie Energy Ltd. common stockholders (in dollars per share)   (0.01) (0.02) 0   0.01 0 0.01         (0.03) 0.02 (0.04) 0.03   0.85 1.25  
Diluted earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share)   $ (0.01) $ (0.02) $ 0   $ 0.01 $ 0 $ 0.01         $ (0.03) $ 0.02 $ (0.04) $ 0.03   $ 0.85 $ 1.25  
Retained earnings $ 54,621 $ 54,960 $ 55,439 $ 55,626 33,449 $ 33,131 $ 33,069 $ 32,705       $ 0 $ 55,626 $ 32,705 $ 55,626 $ 32,705 $ 55,626 $ 32,705 $ 0  
Retained earnings   54,621 54,960 55,439 55,626 33,449 33,131 33,069 32,705       54,960 33,131 54,621 33,449   55,626 32,705  
Total equity   $ 54,621 $ 54,960 55,439 $ 55,626 $ 33,449 $ 33,131 33,069 $ 32,705       54,960 33,131 54,621 33,449   55,626 32,705  
Deferred income taxes                                   652 781  
Changes in income tax payable       $ 832       $ 673         $ 1,576 $ 1,250 $ 2,380 $ 1,924   $ 10,039 $ 11,602