CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net sales	$ 12,249,000	$ 17,257,000
Cost of sales	8,533,000	11,841,000
Gross profit	3,716,000	5,416,000
Operating expenses:
Selling expenses	1,255,000	1,531,000
General and administrative expenses	2,566,000	3,182,000
Research and development costs	1,790,000	2,068,000
Total operating expenses	5,611,000	6,781,000
Loss from continuing operations before items below	(1,895,000)	(1,365,000)
Other income (expense):
Interest income	3,000
Interest expense	(11,000)	36,000
Total other expense	(8,000)	(36,000)
Loss from continuing operations before provision for income taxes	(1,903,000)	(1,401,000)
Benefit from income taxes	(39,000)	(441,000)
Loss from continuing operations	(1,864,000)	(960,000)
Income from discontinued operations, net of income taxes of $51,000 in 2013 and net of benefit for income taxes of $146,000 in 2012	80,000	84,000
Net income (loss)	(1,784,000)	(876,000)
Other comprehensive income, net of tax
Unrealized gain from marketable equity investments	5,000
Total other comprehensive income	5,000
Comprehensive loss	$ (1,779,000)	$ (876,000)
Per share data (basic and diluted):
Loss from continuing operations	$ (0.56)	$ (0.29)
Income from discontinued operations	$ 0.02	$ 0.02
Net loss	$ (0.54)	$ (0.27)
Weighted average shares outstanding	3,321,732	3,272,350