Stock Options (Nonvested Option Activity) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Stock Options [Abstract]
Non-vested (in shares)	794,334	1,460,000
Vested (in shares)	(354,668)	(515,666)
Forfeited (in shares)	(51,000)	(150,000)
Non-vested (in shares)	388,666	794,334
Non-vested, weighted average grant date fair value (in dollars per share)	$ 1.22	$ 1.23
Vested, weighted average grant date fair value (in dollars per share)	1.26	1.20
Forfeited, weighted average grant date fair value (in dollars per share)	1.34	1.38
Non-vested, weighted average grant date fair value (in dollars per share)	$ 1.17	$ 1.22