v3.26.1
Equity Incentive Plan - Deferred Stock Units ("DSU") (Details) - Deferred Stock Units - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Shares      
Nonvested at the beginning of the period (in shares) 68,779 96,604 99,535
Granted (in shares) 12,324 6,621 13,171
Vested (in shares)   (34,446) (16,102)
Nonvested at the end of the period (in shares) 81,103 68,779 96,604
Weighted-Average Grant Date Fair Value      
Nonvested at the beginning of the period (in dollars per share) $ 42.58 $ 32.49 $ 27.38
Granted (in dollars per share) 61.22 108.92 59.43
Vested (in dollars per share)   27.03 22.91
Nonvested at the end of the period (in dollars per share) $ 45.41 $ 42.58 $ 32.49
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 $ 0.7 $ 0.8 $ 0.9