Segment Information (Narrative) (Details) $ in Millions	12 Months Ended
	Jun. 30, 2025 USD ($) Segment	Jun. 30, 2024 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments | Segment	1
Number of reportable segment | Segment	1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	Chief Executive Officer [Member], srt:PresidentMember
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description	The CODM manages the business on a consolidated basis and measures segment performance using operating income and net income, which the Company believes provide the best analysis of business performance. The CODM analyzes the performance of operating income and net income to provide insight into all aspects of the segment’s operations and overall success for a given period. In addition, the CODM reviews significant segment expenses focused on cost of sales, selling and general administrative expenses, and restructuring charges, net. These costs used to measure segment profitability are the same costs already reported in the accompanying Consolidated Statements of Income and Comprehensive Income. Similarly, segment assets are reported in the accompanying Consolidated Balance Sheets.The Company has minimal export sales, primarily to Canada or Mexico. The Company leases and operates three manufacturing facilities in Juarez, Mexico and leases one manufacturing facility in Mexicali, Mexico. Long-lived assets, including property, plant & equipment and right-of-use assets related to leases, located in the United States and Mexico totaled $42.4 million and $35.4 million, respectively, at June 30, 2025 and $46.6 million and $51.5 million, respectively, at June 30, 2024, respectively.
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets, including property, plant & equipment and right-of-use assets | $	$ 42.4	$ 46.6
Mexicali, Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets, including property, plant & equipment and right-of-use assets | $	$ 35.4	$ 51.5