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Property and Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2023
Property and Equipment, Net [Abstract]  
Schedule of Property and Equipment, Net Property and equipment, net consisted of the following as of June 30, 2023 and December 31, 2022:
   June 30,   December 31, 
(Amounts in thousands)  2023   2022 
Shop machinery and equipment  $672   $672 
Computers and electronics   766    766 
Office furniture and fixtures   68    68 
Leasehold improvements   41    41 
Total property and equipment   1,547    1,547 
Less: accumulated depreciation   (1,243)   (1,170)
Total property and equipment, net  $304   $377