v3.21.2
Description of the Business (Details)
Jun. 30, 2021
Dec. 31, 2020
item
Oct. 28, 2020
ft²
Feb. 10, 2020
Description of the Business        
Number of minimum flight proven satellite missions | item   150    
Roccor, LLC        
Description of the Business        
Area of deployable structure of solar sail | ft²     18,000  
Cosmos Intermediate, LLC | Cosmos Parent, LLC        
Description of the Business        
Percentage of equity owned 100.00%     100.00%
Cosmos Finance, LLC        
Description of the Business        
Percentage of equity owned 100.00%     100.00%
Cosmos Acquisition, LLC | Cosmos Finance, LLC        
Description of the Business        
Percentage of equity owned 100.00%     100.00%