CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net sales	$ 13,383	$ 10,812
Cost of sales	9,679	7,846
Gross profit	3,704	2,966
Operating expenses:
Selling expenses	975	585
General and administrative expenses	1,963	1,713
Research and development costs	1,668	1,482
Total operating expenses	4,606	3,780
Operating loss	(902)	(814)
Other income (expense):
Interest income	6	12
Realized gain on sale of investments	455	65
Gain (loss) on sale of equipment	1	(10)
Interest expense	(6)	(8)
Total other income	456	59
Loss from continuing operations before income taxes	(446)	(755)
Benefit from income taxes	44	104
Net loss from continuing operations	(402)	(651)
Income from discontinued operations, net of income taxes	37	163
Net loss	$ (365)	(488)
Other comprehensive income, net of tax:
Unrealized gain from marketable equity investments		262
Less: Reclassification of gains included in net loss		(65)
Comprehensive loss	$ (365)	$ (291)
Basic and diluted income (loss) per share:
Net loss from continuing operations (in dollars per share)	$ (0.10)	$ (0.19)
Income from discontinued operations (in dollars per share)	0.01	0.05
Net loss (in dollars per share)	$ (0.09)	$ (0.14)
Basic and diluted weighted average common shares outstanding (in shares)	4,169,326	3,493,151