Stock-based Compensation (Schedule of Changes in Non-Vested Stock Options) (Details)	12 Months Ended
	Jun. 30, 2021 $ / shares shares
Share-based Payment Arrangement [Abstract]
Non-vested, beginning balance | shares	97,192
Granted | shares	62,025
Vested | shares	(44,667)
Forfeited or expired | shares	(11,100)
Non-vested, ending balance | shares	103,450
Balance, beginning | $ / shares	$ 4.03
Granted | $ / shares	1.59
Vested | $ / shares	5.14
Forfeited or expired | $ / shares	2.83
Outstanding, ending | $ / shares	$ 2.22