CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Net sales	$ 4,097	$ 2,595
Cost of sales	3,039	1,767
Gross profit	1,058	828
Operating expenses:
Selling expenses	214	142
General and administrative expenses	534	491
Research and development costs	428	384
Total operating expenses	1,177	1,017
Operating loss	$ (119)	(189)
Other income (expense):
Interest income		1
Interest expense	$ (6)	(2)
Total other income (expense)	(6)	(1)
Income (loss) from continuing operations before income taxes	$ (125)	(190)
Provision (benefit) for income taxes		(9)
Loss from continuing operations	$ (125)	(181)
Income from discontinued operations, net of income taxes		11
Net loss	$ (125)	(170)
Other comprehensive income, net of tax:
Unrealized gain from marketable equity investments		12
Comprehensive loss	$ (125)	$ (158)
Basic and diluted loss per share:
Net loss from continuing operations (in dollars per share)	$ (0.03)	$ (0.04)
Income from discontinued operations (in dollars per share)	0.00	0.00
Net loss (in dollars per share)	$ (0.03)	$ (0.04)
Weighted average common shares outstanding - basic and diluted (in shares)	4,141,504	4,208,957