Stock-based Compensation (Schedule of changes in non-vested stock options) (Details)	9 Months Ended
	Mar. 31, 2016 $ / shares shares
Average Grant Date Fair Value
Balance, beginning | $ / shares	$ 4.310
Granted | $ / shares	4.149
Vested | $ / shares	3.777
Forfeited or expired | $ / shares	4.710
Outstanding, ending | $ / shares	$ 4.598
Weighted Average Number of Shares Subject to Option
Non-vested, beginning balance | shares	69,300
Granted | shares	1,500
Vested | shares	(25,250)
Forfeited or expired | shares	(1,250)
Non-vested, ending balance | shares	44,300