Stock Based Compensation (Schedule of Changes in Non-Vested Stock Options) (Details)	9 Months Ended
	Mar. 31, 2017 $ / shares shares
Weighted Number of Shares Subject to Option
Non-vested at July 1, 2016 | shares	45,800
Granted | shares	41,150
Vested | shares	(10,000)
Forfeited or expired | shares	(2,250)
Non-vested at March 31, 2017 | shares	74,700
Average Grant Date Fair Value
Non-vested at July 1, 2016 | $ / shares	$ 4.564
Granted | $ / shares	4.640
Vested | $ / shares	4.296
Forfeited or expired | $ / shares	4.694
Non-vested at March 31, 2017 | $ / shares	$ 4.638