Stock-Based Compensation (Details) - 2008 Stock Option Plan [Member] - Stock Option [Member] $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2018 USD ($) $ / shares shares
Stock option activity, shares [Roll Forward]
Outstanding at beginning of period (in shares)		37,770
Exercised (in shares)		(24,000)
Outstanding and exercisable at period end (in shares)	13,770	13,770
Stock option activity, weighted average exercise price per share [Abstract]
Outstanding at beginning of year (in dollars per share) | $ / shares		$ 6.25
Exercised (in dollars per share) | $ / shares		6.25
Outstanding and exercisable at period end (in dollars per share) | $ / shares	$ 6.25	$ 6.25
Options outstanding, intrinsic value | $	$ 419	$ 419
Options exercisable, intrinsic value | $	419	419
Options exercised during period, total intrinsic value | $	$ 563	$ 666
Options granted (in shares)		0