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Marketable Securities - Investments in debt securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025
Investments in Debt Securities
Credit loss recognized	$ 0	$ 0
U.S. Treasury Securities
Investments in Debt Securities
Amortized Cost	10,136		$ 10,058
Unrealized Gains	222		185
Aggregate Fair Value	$ 10,358		$ 10,243

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- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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