CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - 9 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital In Excess Of Par Value [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Jun. 30, 2017	$ 43,469	$ 94	$ 212,018	$ (165,498)	$ (2,890)	$ (255)
Balance (in shares) at Jun. 30, 2017		9,410,878				(37,788)
Dividends declared	(2,378)			(2,378)
Dividends forfeited with restricted stock forfeitures	8			8
Share-based compensation expense	2,256		2,256
Lapse of restriction on restricted stock	0	$ 5	(5)
Lapse of restriction on restricted stock (in shares)		526,013
Repurchase and retirement of common stock	(1,840)	$ (3)	(1,825)	(12)
Repurchase and retirement of common stock (in shares)		(354,090)
Other comprehensive income (loss), net of taxes:
Net income	17,785			17,785
unrealized gain (loss) on available-for-sale investments	(311)				(311)
Foreign currency translation adjustment	82				82
Pension plan	(155)				(155)
Total comprehensive income	17,401
Balance at Mar. 31, 2018	$ 58,916	$ 96	$ 212,444	$ (150,095)	$ (3,274)	$ (255)
Balance (in shares) at Mar. 31, 2018		9,582,801				(37,788)