Organization and Basis of Presentation (Details) - Schedule of business combination $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Schedule of business combination [Abstract]
Cash - PIPE Investment	$ 165,000
Cash - Athena Trust Account, net of redemptions and cash on hand	22,848
Less: Athena transaction costs and advisory fees paid	(16,186)
Less: Heliogen transaction costs and advisory fees paid	(12,262)
Net proceeds from Business Combination and PIPE financing	159,400
Less: Accrued transaction costs	(1,474)
Add: Prepaid expenses and receivables assumed as part of Business Combination	1,651
Less: Warrants assumed as part of Business Combination	(10,880)
Less: Accounts payable assumed as part of Business Combination	(498)
Reverse recapitalization and PIPE financing, net	$ 148,199