Equity Incentive Plan - Deferred Stock Units ("DSU") (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2022	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Shares
Vested (in shares)	(238,863)
Deferred Stock Units
Shares
Nonvested at the beginning of the period (in shares)		99,535	69,117	59,354
Granted (in shares)		13,171	30,418	14,769
Vested (in shares)		(16,102)		(5,006)
Nonvested at the end of the period (in shares)		96,604	99,535	69,117
Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share)		$ 27.38	$ 24.27	$ 22.01
Granted (in dollars per share)		59.43	34.43	33.24
Vested (in dollars per share)		22.91		23.97
Nonvested at the end of the period (in dollars per share)		$ 32.49	$ 27.38	$ 24.27
Unrecognized compensation		$ 0.3
Weighted average period for recognition of total unrecognized compensation expense related to unvested stock options granted		4 months 24 days
Stock based compensation expense		$ 0.9	$ 0.7	$ 0.5