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Inventories | 12 Months Ended
--- | ---
Apr. 30, 2021
Inventory Disclosure [Abstract] |
Inventories | InventoriesInventories consisted of the following at April 30:
(in thousands) | 2021 | 2020
Finished goods | $ | 2,988 |  | $ | 2,455 |
Work-in-process | 1,832 |  | 1,921 |
Materials and components | 11,697 |  | 10,954 |
Total inventories | $ | 16,517 |  | $ | 15,330 |
At April 30, 2021 and 2020, the Company's international subsidiaries' inventories were $2,560,000 and $2,136,000, respectively, measured using the FIFO method at the lower of cost or net realizable value and are included in the above tables.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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