CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Common Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	40,000,000	40,000,000
Common Stock, shares issued	21,179,192	21,174,507
Common Stock, shares outstanding	18,826,742	18,844,657
Treasury Stock, shares	2,352,450	2,329,850
Allowance for Doubtful Accounts Receivable	$ 175	$ 155