Stock-Based Compensation (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2018 USD ($) Plan $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares	Dec. 31, 2008 $ / shares shares
Share-based Compensation [Abstract]
Number of stock-based compensation plans | Plan	2
Remaining compensation cost to be recognized | $	$ 0	$ 0
Stock option activity, weighted average exercise price per share [Abstract]
Options outstanding, intrinsic value | $	0	791
Options exercisable, intrinsic value | $	0	791
Options exercised during period, total intrinsic value | $	$ 997	$ 339
Options granted (in shares)	0	0
Stock Option [Member]
Stock option activity, shares [Roll Forward]
Outstanding at beginning of year (in shares)	37,770	64,770
Exercised (in shares)	(37,770)	(27,000)
Outstanding at period end (in shares)	0	37,770
Exercisable at period end (in shares)	0	37,770
Stock option activity, weighted average exercise price per share [Abstract]
Outstanding at beginning of year (in dollars per share) | $ / shares	$ 6.25	$ 6.25
Exercised (in dollars per share) | $ / shares	6.25	6.25
Outstanding at period end (in dollars per share) | $ / shares	0	6.25
Exercisable at period end (in dollars per share) | $ / shares	$ 0	$ 6.25
2008 Stock Option Plan [Member]
Share-based Compensation [Abstract]
Number of shares authorized under the plan (in shares)	360,000
Options, exercise price (in dollars per share) | $ / shares			$ 6.25
Options, expected term	10 years
Award vesting period	3 years
Stock option activity, weighted average exercise price per share [Abstract]
Options granted (in shares)			329,000