CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Common Shares [Member]		Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Total
Balance at beginning at Jun. 30, 2015		$ 18,411			$ (9,933)	$ 8,478
Balance at beginning (in shares) at Jun. 30, 2015		4,139,579
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					822	822
Exercise of stock options		$ 16				$ 16
Exercise of stock options (in shares)		7,500				7,500
ESPP shares issued		$ 11				$ 11
ESPP shares issued (in shares)		5,596
Share-based compensation		$ 4				4
Share repurchases		$ (454)				(454)
Share repurchases (in shares)		(99,688)
Balance at end at Jun. 30, 2016		$ 17,988			(9,111)	8,877
Balance at end (in shares) at Jun. 30, 2016		4,052,987
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					5,084	5,084
Exercise of stock options	[1]	$ 7				$ 7
Exercise of stock options (in shares)		23,632	[1]			33,834
Net change in unrealized gain from marketable equity investments				33		$ 33
ESPP shares issued		$ 18				18
ESPP shares issued (in shares)		3,794
Share-based compensation		$ 3				$ 3
Shares issued under ATM	[2]	8,276
Share repurchases		$ (312)				$ (312)
Share repurchases (in shares)		(63,496)
Balance at end at Jun. 30, 2017		$ 17,704		$ 33	$ (4,027)	$ 13,710
Balance at end (in shares) at Jun. 30, 2017		4,025,193

[1] During fiscal 2017 a total of 33,834 stock options were exercised and a total of 10,202 shares were used to effect a cashless exercise.

[2] The proceeds raised from the ATM shares issued in the net amount of $48,000 were accounted for as a reduction of prepaid expenses related to establishing the ATM.