CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Common Shares [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
Balance at beginning at Jun. 30, 2017		$ 17,704	$ 33	$ (4,027)	$ 13,710
Balance at beginning (in shares) at Jun. 30, 2017		4,025,193
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				628	628
Net change in unrealized gain (loss) from marketable equity investments, net of taxes			(109)		(109)
ESPP shares issued		$ 16			16
ESPP shares issued (in shares)		3,099
Share-based compensation		$ 3			3
Shares issued under ATM	[1]	$ 2,027			2,027
Shares issued under ATM, (in shares)	[1]	320,000
Balance at end at Sep. 30, 2017		$ 19,750	(76)	(3,399)	16,275
Balance at end (in shares) at Sep. 30, 2017		4,348,292
Balance at beginning at Jun. 30, 2017		$ 17,704	33	(4,027)	13,710
Balance at beginning (in shares) at Jun. 30, 2017		4,025,193
Balance at end at Jun. 30, 2018		$ 19,835	(153)	(2,406)	17,276
Balance at end (in shares) at Jun. 30, 2018		4,331,089
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				1,349	1,349
Net change in unrealized gain (loss) from marketable equity investments, net of taxes			298		298
ESPP shares issued		$ 10			10
ESPP shares issued (in shares)		1,820
Share-based compensation		$ 10			10
Shares issued in connection with performance award vesting
Shares issued in connection with performance award vesting, (in shares)		40,000
Shares withheld from common stock issued to pay employee payroll taxes		$ (101)			(101)
Shares withheld from common stock issued to pay employee payroll taxes, shares		(15,273)
Share repurchases		$ (1,115)			(1,115)
Share repurchases (in shares)		(108,088)
Balance at end at Sep. 30, 2018		$ 18,639	$ 145	$ (1,057)	$ 17,727
Balance at end (in shares) at Sep. 30, 2018		4,249,548

[1] Of the proceeds raised from the ATM shares issued during fiscal 2018, $142,000 were accounted for as a reduction of prepaid expenses.