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Leases (Tables)
 9 Months Ended
Jan. 31, 2021
Leases [Abstract]  
Schedule of Operating Lease Costs

The components of lease expense in the Consolidated Statement of Operations for both the three and nine months ended January 31, 2021 and 2020 was as follows:

 

    Three months ended January 31,     Nine months ended January 31,  
    2021     2020     2021     2020  
    (in thousands)  
                         
Operating lease cost   $ 79     $ 79     $ 238     $ 238  
Short-term lease cost     7       -       12       -  
Total lease cost   $ 86     $ 79     $ 250     $ 238  
Schedule of Right-of Use Assets and Lease Liabilities

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

 

    January 31, 2021  
    (in thousands)  
       
Operating lease:        
Operating right-of-use asset, net   $ 1,005  
         
Right-of-use liability- current     252  
Right-of-use liability- long term     887  
Total lease liability   $ 1,139  
         
Weighted average remaining lease term- operating leases     3.72 years  
Weighted average discount rate- operating leases     8.5 %
Schedule of Future Minimum Lease Payments Under Operating Lease

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

 

    January 31, 2021  
    (in thousands)  
       
Remainder of fiscal year 2021   $ 84  
2022     341  
2023     352  
2024     362  
2025     184  
Total future minimum lease payments   $ 1,323  
Less imputed interest     (184 )
Total   $ 1,139