Commitments and Contingencies (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2020

Dec. 31, 2019

EOS ENERGY STORAGE, LLC [Member]

Schedule of future minimum lease commitments

	Operating		Capital
Remainder of 2020	$	316	$	8
2021		685		13
2022		755		4
2023		825		—
2024		895		—
Later years		1,644		—
Total minimum lease payments	$	5,120	$	25
Less amounts representing interest				5
Present value of minimum lease payments			$	20

	Operating		Capital
2020	$	614	$	13
2021		685		13
2022		755		4
2023		825		—
2024		895		—
Later years		1,644		—
Total minimum lease payments	$	5,418	$	30
Less amounts representing interest				5
Present value of minimum lease payments			$	25