CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Net sales	$ 10,812	$ 12,249
Cost of sales	7,846	8,533
Gross profit	2,966	3,716
Operating expenses:
Selling expenses	585	1,255
General and administrative expenses	1,713	2,566
Research and development costs	1,482	1,790
Total operating expenses	3,780	5,611
Operating loss	(814)	(1,895)
Other income (expense):
Interest income	12	3
Realized gain on sale of investments	65
Loss on sale of equipment	(10)
Interest expense	(8)	(11)
Total other income (expense)	59	(8)
Loss from continuing operations before income taxes	(755)	(1,903)
Benefit from income taxes	104	39
Net loss from continuing operations	(651)	(1,864)
Income from discontinued operations, net of income taxes	163	80
Net loss	(488)	(1,784)
Other comprehensive income, net of tax:
Unrealized gain from marketable equity investments	262	5
Less: Reclassification of gains included in net loss	(65)
Comprehensive loss	$ (291)	$ (1,779)
Basic and diluted income (loss) per share:
Net loss from continuing operations (in dollars per share)	$ (0.19)	$ (0.56)
Income from discontinued operations (in dollars per share)	$ 0.05	$ 0.02
Net loss (in dollars per share)	$ (0.14)	$ (0.54)
Weighted average shares outstanding (in shares)	3,493,151	3,321,732