Stock Based Compensation (Schedule of Changes in Non-Vested Stock Options) (Details)	6 Months Ended
	Dec. 31, 2017 $ / shares shares
Number of Shares Subject to Option
Non-vested at July 1, 2017 | shares	42,900
Granted | shares	51,515
Vested | shares	(500)
Forfeited or expired | shares	(500)
Non-vested at December 31, 2017 | shares	93,415
Weighted Average Grant Date Fair Value (per Option)
Non-vested at July 1, 2017 | $ / shares	$ 4.586
Granted | $ / shares	2.790
Vested | $ / shares	4.431
Forfeited or expired | $ / shares	4.640
Non-vested at December 31, 2017 | $ / shares	$ 3.596