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Property, Plant, and Equipment (Tables)
 12 Months Ended
Apr. 30, 2025
Property, Plant and Equipment [Abstract]  
Summary of Property, Plant and Equipment A summary of the estimated useful lives is as follows:
DescriptionUseful Life
Machinery and equipment
2 to 10 years
Computer and other equipment
2 to 7 years
Leasehold improvements
10 to 20 years
The following table summarizes property, plant, and equipment as of April 30, 2025 and 2024 (in thousands):
April 30, 2025April 30, 2024
Machinery and equipment$24,087 $20,852 
Computer and other equipment2,228 1,988 
Leasehold improvements1,753 762 
28,068 23,602 
Less: Accumulated depreciation and amortization(16,962)(13,599)
11,106 10,003 
Construction in progress125 1,035 
Total property, plant, and equipment, net$11,231 $11,038 
Summary of Depreciation and Amortization Expense
The following table summarizes depreciation and amortization expense, which includes amortization of intangibles, by line item for the fiscal years ended April 30, 2025, 2024, and 2023 (in thousands):
For the Years Ended April 30,
202520242023
Cost of sales$1,031 $1,313 $1,429 
Research and development1,123 615 415 
Selling, marketing, and distribution1,225 836 362 
General and administrative (a)9,896 13,337 14,305 
Total depreciation and amortization$13,275 $16,101 $16,511 
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(a)General and administrative expenses included $8.5 million, $12.8 million, and $13.6 million of amortization for the fiscal years ended April 30, 2025, 2024, and 2023, respectively, which were recorded as a result of our acquisitions.