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Other Current Assets
 9 Months Ended
Jan. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Current Assets

(4) Other Current Assets

 

Other current assets consist of the following at January 31, 2021 and April 30, 2020:

 

    January 31, 2021     April 30, 2020  
    (in thousands)  
             
Deposits   $ 126     $ 60  
Other receivables     244       2  
Prepaid insurance     411       124  
Prepaid offering costs     56       275  
Prepaid expenses- other     164       127  
    $ 1,001     $ 588