Stock Based Compensation (Schedule of Changes in Non-Vested Stock Options) (Details)	9 Months Ended
	Mar. 31, 2020 $ / shares shares
Number of Shares Subject to Option
Non-vested at July 1, 2019 | shares	104,214
Granted | shares	54,025
Vested | shares	(43,420)
Forfeited or expired | shares	(9,202)
Non-vested at March 31, 2020 | shares	105,617
Weighted Average Grant Date Fair Value (per Option)
Non-vested at July 1, 2019 | $ / shares	$ 4.077
Granted | $ / shares	3.030
Vested | $ / shares	2.794
Forfeited or expired | $ / shares	4.194
Non-vested at March 31, 2020 | $ / shares	$ 4.059