Stock Based Compensation Plans - Schedule of Stock Option Activity (Details) - USD ($)	9 Months Ended	12 Months Ended
	Mar. 31, 2021	Jun. 30, 2020
Share-based Payment Arrangement [Abstract]
Number of Shares, Outstanding, Beginning Balance	341,195	341,195
Number of Shares, Granted
Number of Shares, Exercised
Number of Shares, Forfeited
Number of Shares, Exchanged
Number of Shares, Outstanding, Ending Balance	341,195	341,195
Number of Shares, Exercisable, Ending Balance	337,595	323,195
Number of Shares, Vested and expected to vest, Ending Balance	341,195	341,195
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 16.95	$ 16.95
Weighted Average Exercise Price, Granted
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Forfeited
Weighted Average Exercise Price, Exchanged
Weighted Average Exercise Price, Outstanding, Ending Balance	16.95	16.95
Weighted Average Exercise Price, Exercisable, Ending Balance	16.84	16.38
Weighted Average Exercise Price, Vested and expected to vest, Ending Balance	$ 16.95	$ 16.95
Weighted Average Remaining Life, Outstanding, Beginning Balance	3 years 9 months 29 days	3 years 26 days
Weighted Average Remaining Life, Outstanding, Ending Balance	3 years 29 days	3 years 9 months 29 days
Weighted Average Remaining Life, Exercisable, Ending Balance	3 years 18 days	3 years 8 months 2 days
Weighted Average Remaining Life, Vested and expected to vest, Ending Balance	3 years 29 days	3 years 9 months 29 days
Aggregate Intrinsic Value, Outstanding, Beginning Balance	$ 3,271,000	$ 4,680,000
Aggregate Intrinsic Value, Outstanding, Ending Balance	6,689,000	3,271,000
Aggregate Intrinsic Value, Exercisable, Ending Balance	6,656,000	3,271,000
Aggregate Intrinsic Value, Vested and expected to vest, Ending Balance	$ 6,689,000	$ 3,271,000