Fair Value Measurements - Schedule of assets and liabilities which are measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Liability:
Private Warrants	$ 905	$ 5,404
Contingent consideration -– Quantum		1,950
Earnout – World Energy		1,000
Fair value of obligation to issue shares of common stock to sellers of World Energy	187	541
Total	1,092	8,895
Level I
Liability:
Private Warrants	0	0
Contingent consideration -– Quantum		0
Earnout – World Energy		0
Fair value of obligation to issue shares of common stock to sellers of World Energy	0	0
Total	0	0
Level II
Liability:
Private Warrants	0	0
Contingent consideration -– Quantum		0
Earnout – World Energy		0
Fair value of obligation to issue shares of common stock to sellers of World Energy	0	0
Total	0	0
Level III
Liability:
Private Warrants	905	5,404
Contingent consideration -– Quantum		1,950
Earnout – World Energy		1,000
Fair value of obligation to issue shares of common stock to sellers of World Energy	187	541
Total	$ 1,092	$ 8,895