v3.26.1
Note 17 - Legal and Regulatory Proceedings (Details Textual) - USD ($)
$ in Thousands
3 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
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenue from Contract with Customer, Excluding Assessed Tax $ 121,319 $ 138,324 $ 105,521 $ 136,807 $ 102,902 $ 111,916 $ 90,696 $ 119,688 $ 104,933 $ 125,048 $ 93,463 $ 105,264 $ 501,971 $ 425,202 $ 428,708
Violations of Illinois Consumer Fraud and Deceptive Business Practices Act [Member] | Loss from Alleged Violations [Member] | Residents Energy [Member]                              
Revenue from Contract with Customer, Excluding Assessed Tax                         $ 27,900 $ 36,600 $ 48,300