FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS - Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities	$ 73,810	$ 56,741
Recurring
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Financial assets measured at fair value	85,001	117,990
Recurring \| Money market funds
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Cash and cash equivalents	7,695	61,249
Recurring \| Corporate commercial paper
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Cash and cash equivalents	3,496
Marketable debt securities	18,456	20,929
Recurring \| U.S. Government agencies
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities	4,943	1,997
Recurring \| U.S. Government treasuries
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities		2,720
Recurring \| Corporate notes and bonds
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities	50,411	30,832
Recurring \| Asset-backed securities
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities		263
Recurring \| Level 1
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Financial assets measured at fair value	7,695	61,249
Recurring \| Level 1 \| Money market funds
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Cash and cash equivalents	7,695	61,249
Recurring \| Level 2
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Financial assets measured at fair value	77,306	56,741
Recurring \| Level 2 \| Corporate commercial paper
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Cash and cash equivalents	3,496
Marketable debt securities	18,456	20,929
Recurring \| Level 2 \| U.S. Government agencies
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities	4,943	1,997
Recurring \| Level 2 \| U.S. Government treasuries
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities		2,720
Recurring \| Level 2 \| Corporate notes and bonds
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities	$ 50,411	30,832
Recurring \| Level 2 \| Asset-backed securities
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS
Marketable debt securities		$ 263

Fair value portion of asset recognized for present right to economic benefit.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of investment in marketable security.

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