v3.26.1
Property, Plant and Equipment, Net
 12 Months Ended
May 31, 2026
Property, Plant, and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT, NET PROPERTY, PLANT AND EQUIPMENT, NET
Property, plant and equipment are summarized as follows:
(in thousands)May 31, 2026May 31, 2025
Building and building improvements$16,621 $16,604 
Computer software and equipment29,738 29,038 
Machinery and equipment19,008 16,596 
Placement and evaluation units40,405 36,991 
Construction in progress1,640 3,794 
107,412 103,023 
Less accumulated depreciation(80,708)(71,116)
26,704 31,907 
Land and land improvements393 393 
$27,097 $32,300 
Depreciation expense for fiscal years 2026, 2025 and 2024 was $10.5 million, $13.5 million and $14.7 million, respectively. Depreciation expense for the year ended May 31, 2026, 2025 and 2024 includes accelerated depreciation of $0.3 million, $3.4 million and $2.4 million, respectively, related to the plant closure announced on January 5, 2024 (see Note 19 "Acquisition, restructuring and other items, net" as set forth in the Notes to the consolidated financial statements in this Annual Report on Form 10-K).