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Organization and Significant Accounting Policies - (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Mar. 31, 2022
Apr. 30, 2022
USD ($)
segment
May 03, 2021
Apr. 30, 2021
USD ($)
Feb. 19, 2021
Jun. 10, 2019
Percentage of ownership interest sold 7.00%          
Number of reportable segments | segment   4        
Restricted cash | $   $ 0   $ 8,322,000    
HAPSMobile            
Ownership interest   100.00%        
Pulse Aerospace, LLC            
Ownership interest acquired           100.00%
Arcturus UAV Inc.            
Ownership interest acquired         100.00%  
Telerob            
Ownership interest acquired     100.00%