CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Net sales	$ 20,158	$ 13,383
Cost of sales	14,755	9,679
Gross profit	5,403	3,704
Operating expenses:
Selling expenses	898	975
General and administrative expenses	1,882	1,963
Impairment of goodwill and intangible assets	245
Research and development costs	1,852	1,668
Total operating expenses	4,877	4,606
Operating income (loss)	526	(902)
Other income (expense):
Interest income		6
Realized gain on sale of investments		455
Gain from sale of Investment in Ramsey Property	340
Gain from disposal of equipment	18	1
Interest expense	(37)	(6)
Total other income	321	456
Income (loss) from continuing operations before income taxes	847	(446)
Income tax expense (benefit)	25	(44)
Net income (loss) from continuing operations	822	(402)
Income from discontinued operations, net of income taxes		37
Net income (loss)	$ 822	$ (365)
Basic and diluted income (loss) per share:
Net income (loss) from continuing operations (in dollars per share)	$ 0.2	$ (0.1)
Income from discontinued operations (in dollars per share)		0.01
Net income (loss) (in dollars per share)	$ 0.2	$ (0.09)
Weighted average common shares outstanding:
Basic (in shares)	4,141,353	4,169,326
Diluted (in shares)	4,173,556	4,169,326