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Leases (Tables)
 3 Months Ended
Jul. 31, 2021
Leases  
Schedule of Operating Lease Costs

The components of lease expense in the Consolidated Statement of Operations for the three months ended July 31, 2021 and 2020 were as follows:

   2021   2020 
   Three months ended July 31, 
   2021   2020 
   (in thousands)
Operating lease cost  $92   $79 
Short-term lease cost   5    2 
Total lease cost  $97   $81 
Schedule of Right-of Use Assets and Lease Liabilities

Information related to the Company’s right-of use assets and lease liabilities as of July 31, 2021 was as follows:

 

   July 31, 2021 
   (in thousands) 
     
Operating lease:     
Operating right-of-use asset, net  $967 
      
Right-of-use liability- current   317 
Right-of-use liability- long term   774 
Total lease liability  $1,091 
      
Weighted average remaining lease term- operating leases   3.10 years 
Weighted average discount rate- operating leases   8.2%
Schedule of Future Minimum Lease Payments Under Operating Lease

Total remaining lease payments under the Company’s operating leases are as follows:

 

   July 31, 2021 
   (in thousands) 
      
Remainder of fiscal year 2022  $339 
2023   391 
2024   362 
2025   182 
Total future minimum lease payments  $1,274 
Less imputed interest   (183)
Total  $1,091