FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS - Significant Concentrations (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Significant Concentrations | ||
| Concentration risk, credit risk, uninsured deposits | Financial instruments that subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and investments in marketable debt securities. The Company maintains its cash in demand accounts at a high-quality financial institution. As of and for the fiscal years ended June 30, 2026 and 2025, cash deposits have exceeded the amount of insurance provided on such deposits by the Federal Deposit Insurance Corporation. | |
| Banking and Financial Services Industries | ||
| Significant Concentrations | ||
| Marketable debt securities | $ 55.4 | $ 45.2 |