Incentive Plans - Summary of Stock Option Activity (Details) - Equity Incentive Plans - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Shares:
Outstanding, Beginning of Period	417,000	554,500
Granted	17,000	0
Exercised	0	(132,000)
Forfeited	0	(5,500)
Expired	(3,000)
Outstanding, End of Period	431,000	417,000
Vested and expected to vest at year end	419,200	408,000
Exercisable at year end	372,000	372,000
Weighted-Average Exercise Price (in dollars per share):
Outstanding, Beginning of Period	$ 16.22	$ 14.07
Granted	16.70	0
Exercised	0	7.43
Forfeited	0	10.68
Expired	16.70
Outstanding, End of Period	16.24	16.22
Vested and expected to vest at year end	16.15	16.13
Exercisable at year end	$ 15.74	$ 15.74
Weighted- Average Remaining Contractual Term (Years):
Outstanding at year end	3 years 5 months 23 days	4 years 3 months 10 days
Vested and expected to vest at year end	3 years 4 months 9 days	4 years 2 months 12 days
Exercisable at year end	2 years 10 months 2 days	3 years 10 months 2 days
Aggregate Intrinsic Value ($000):
Outstanding at year end	$ 63	$ 760
Vested and expected to vest at year end	63	760
Exercisable at year end	$ 63	$ 760