Stock Based Compensation (Schedule of Changes in Non-Vested Stock Options) (Details)	3 Months Ended
	Sep. 30, 2020 $ / shares shares
Number of Shares Subject to Option
Non-vested at July 1, 2020 | shares	97,192
Granted | shares
Vested | shares
Forfeited or expired | shares	(3,050)
Non-vested at September 30, 2020 | shares	94,142
Weighted Average Grant Date Fair Value (per Option)
Non-vested at July 1, 2020 | $ / shares	$ 4.034
Granted | $ / shares
Vested | $ / shares
Forfeited or expired | $ / shares	3.618
Non-vested at September 30, 2020 | $ / shares	$ 4.048