Basis of Presentation, Business Description and Summary of Significant Accounting Policies (Tables)

12 Months Ended

May 31, 2024

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Refer below for useful lives by category:

	Estimated useful lives
Building and building improvements	3 to 40 years
Computer software and equipment	2 to 10 years
Machinery and equipment	3 to 11 years
Placement and evaluation units	5 years

Property, plant and equipment are summarized as follows:

(in thousands)	May 31, 2024		May 31, 2023
Building and building improvements	$	30,099	$	29,660
Computer software and equipment	28,407		27,435
Machinery and equipment	15,756		17,023
Placement and evaluation units	31,312		26,355
Construction in progress	2,638		2,444
	108,212		102,917
Less accumulated depreciation	(69,675)		(59,026)
Less building impairment	(3,364)		—
	35,173		43,891
Land and land improvements	493		493
	$	35,666	$	44,384

Schedule of Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements - Adopted

Standard	Description	Effective Date	Effect on the Consolidated Financial Statements
ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers	This ASU improves the accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer.	June 1, 2023	The Company adopted the new standard in the first quarter of fiscal year 2024 and it did not have an impact on the Company's consolidated financial statements.

Recently Issued Accounting Pronouncements - Not Yet Applicable or Adopted
Standard	Description	Effective Date	Effect on the Consolidated Financial Statements
ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures	This ASU improves the reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses.	June 1, 2024	The Company plans to adopt the new standard in the first quarter of fiscal year 2025 and does not expect there to be a material impact to the consolidated financial statements.
ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures	This ASU improves the income tax disclosure requirements on an annual basis by (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold.	June 1, 2025	The Company plans to adopt the new standard in the first quarter of fiscal year 2026 and does not expect there to be a material impact to the consolidated financial statements.