Marketable Securities - Investments in net gains and losses on the equity securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Marketable Securities
Net gains recognized during the period on equity securities	$ 51	$ 42	$ 219	$ 160
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date	49	(18)	131	52
Equity Securities, FV-NI, Gain (Loss)	$ 100	$ 24	$ 350	$ 212