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Subsequent Event - Additional Information (Details) - Subsequent Event - USD ($)
$ in Thousands
May 11, 2020
May 01, 2020
SoCal Gas    
Subsequent Event [Line Items]    
Advance received against provision of future services $ 555  
Promissory Note | PPP Loan    
Subsequent Event [Line Items]    
Loan amount   $ 1,872
Debt maturity date   Apr. 27, 2022
Credit facility interest rate   1.00%