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Business Combination (Details) - Schedule of unaudited pro forma financial information presents the combined results - World Energy [Member] - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Business Combination (Details) - Schedule of unaudited pro forma financial information presents the combined results [Line Items]        
Revenues $ 6,502 $ 2,629 $ 12,118 $ 10,033
Net (loss) income $ (10,042) $ (14,058) $ 52,272 $ (20,564)
Net (loss) income per share - basic $ (0.07) $ (0.17) $ 0.38 $ (0.25)
Net loss per share - diluted $ (0.07) $ (0.17) $ (0.16) $ (0.25)