Consolidated Statement of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock Amount	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Non- Controlling Interest
Balance, beginning of period at Jun. 30, 2016	$ 28,627	$ 189,294	$ (2,828)	$ 1,419	$ (159,117)	$ (101)	$ (40)
Balance (in shares) at Jun. 30, 2016		4,125
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net change in available-for-sale debt and marketable equity securities	40					40
Stock-based compensation	98			98
Forfeiture of stock-based compensation	(7)	$ (4)		(3)
Forfeiture of stock-based compensation (in shares)		(12)
Exercise of stock options	18	$ 49		(31)
Exercise of stock options (in shares)		9
Share repurchases	(1,293)		(1,293)
Share repurchases (in shares)		(160)
Restricted stock issuance	1,043	$ 1,043
Restricted stock issuance (in shares)		149
Acquisition of non-controlling interest	0				(214)		214
Net loss	(11,756)				(11,582)		(174)
Balance, end of period at Jun. 30, 2017	16,770	$ 190,382	(4,121)	1,483	(170,913)	(61)	0
Balance (in shares) at Jun. 30, 2017		4,111
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net change in available-for-sale debt and marketable equity securities	30					30
Stock-based compensation	262			262
Cancellation of restricted stock (in shares)		(12)
Share repurchases	(7)		(7)
Share repurchases (in shares)		(2)
Restricted stock issuance	188	$ 188
Acquisition of non-controlling interest							0
Net loss	(13,251)				(13,251)
Balance, end of period at Jun. 30, 2018	$ 3,992	$ 190,570	$ (4,128)	$ 1,745	$ (184,164)	$ (31)	$ 0
Balance (in shares) at Jun. 30, 2018		4,097