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Business Segment Information (Details 1) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets $ 293,010 $ 277,615
GRE [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets 209,483 191,839
Genie Renewables [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets 15,680 12,191
Corporate [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets $ 67,847 $ 73,585