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Revenue Recognition (Details 1) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Disaggregation of Revenue [Line Items]    
Total revenues $ 105,276 $ 85,926
Electricity    
Disaggregation of Revenue [Line Items]    
Total revenues 74,487 59,380
Natural gas    
Disaggregation of Revenue [Line Items]    
Total revenues 26,925 24,504
Other    
Disaggregation of Revenue [Line Items]    
Total revenues 3,864 2,042
Non-Commercial Channel [Member]    
Disaggregation of Revenue [Line Items]    
Total revenues 80,906 70,260
Non-Commercial Channel [Member] | Electricity    
Disaggregation of Revenue [Line Items]    
Total revenues 60,123 50,622
Non-Commercial Channel [Member] | Natural gas    
Disaggregation of Revenue [Line Items]    
Total revenues 20,783 19,638
Non-Commercial Channel [Member] | Other    
Disaggregation of Revenue [Line Items]    
Total revenues
Commercial Channel [Member]    
Disaggregation of Revenue [Line Items]    
Total revenues 20,506 13,624
Commercial Channel [Member] | Electricity    
Disaggregation of Revenue [Line Items]    
Total revenues 14,364 8,758
Commercial Channel [Member] | Natural gas    
Disaggregation of Revenue [Line Items]    
Total revenues 6,142 4,866
Commercial Channel [Member] | Other    
Disaggregation of Revenue [Line Items]    
Total revenues
Other [Member]    
Disaggregation of Revenue [Line Items]    
Total revenues 3,864 2,042
Other [Member] | Electricity    
Disaggregation of Revenue [Line Items]    
Total revenues
Other [Member] | Natural gas    
Disaggregation of Revenue [Line Items]    
Total revenues
Other [Member] | Other    
Disaggregation of Revenue [Line Items]    
Total revenues $ 3,864 $ 2,042