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Inventories (Tables)
12 Months Ended
Apr. 30, 2021
Inventory Disclosure [Abstract]  
Summary of Inventories

The following table sets forth a summary of inventories, net of reserves, stated at lower of cost or market, as of April 30, 2021 and 2020 (in thousands):

 

 

 

April 30, 2021

 

 

April 30, 2020

 

Finished goods

 

$

21,528

 

 

$

60,400

 

Finished parts

 

 

41,738

 

 

 

29,619

 

Work in process

 

 

7,918

 

 

 

6,787

 

Raw material

 

 

7,293

 

 

 

6,935

 

Total inventories

 

$

78,477

 

 

$

103,741