CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]
Net sales	$ 2,404	$ 3,060	$ 7,599	$ 9,527
Cost of sales	1,864	2,177	5,564	6,376
Gross profit	540	883	2,035	3,151
Operating expenses:
Selling expenses	177	311	408	907
General and administrative expenses	420	853	1,304	2,087
Research and development costs	381	490	1,121	1,360
Total operating expenses	978	1,654	2,833	4,354
Operating loss	(438)	(771)	(798)	(1,203)
Interest expense	(2)	(2)	(7)	(8)
Interest income	1		11
Realized gain on sale of investments	27		27
Loss from continuing operations before benefit from income taxes	(412)	(773)	(767)	(1,211)
Income tax benefit	(54)	(8)	(88)	(27)
Loss from continuing operations	(358)	(765)	(679)	(1,184)
Income (loss) from discontinued operations, net of income taxes	(27)	18	167	72
Net loss	(385)	(747)	(512)	(1,112)
Other comprehensive income, net of tax:
Unrealized gain from marketable equity investments	20		225
Less: Reclassification of gains included in net loss	(27)		(27)
Comprehensive loss	$ (392)	$ (747)	$ (314)	$ (1,112)
Basic and diluted loss per share:
Loss from continuing operations	$ (0.11)	$ (0.23)	$ (0.2)	$ (0.36)
Income (loss) from discontinued operations	$ (0.01)	$ 0.01	$ 0.05	$ 0.02
Net loss	$ (0.12)	$ (0.22)	$ (0.15)	$ (0.34)
Weighted average common shares outstanding:
Basic (in shares)	3,342	3,341	3,344	3,313
Diluted (in shares)	3,342	3,341	3,344	3,313
Common shares outstanding (in shares)	3,344	3,341	3,344	3,341