CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 3,060,000	$ 4,539,000	$ 9,527,000	$ 13,601,000
Cost of sales	2,177,000	3,336,000	6,376,000	9,043,000
Gross profit	883,000	1,203,000	3,151,000	4,558,000
Operating expenses:
Selling expenses	311,000	450,000	907,000	1,192,000
General and administrative expenses	853,000	973,000	2,087,000	2,477,000
Research and development costs	490,000	486,000	1,360,000	1,555,000
Total operating expenses	1,654,000	1,909,000	4,354,000	5,224,000
Loss from continuing operations before items below	(771,000)	(706,000)	(1,203,000)	(666,000)
Other expense:
Interest expense	(2,000)	(8,000)	(8,000)	(28,000)
Total other expense	(2,000)	(8,000)	(8,000)	(28,000)
Loss from continuing operations before benefit from income taxes	(773,000)	(714,000)	(1,211,000)	(694,000)
Benefit from income taxes	(8,000)	(167,000)	(27,000)	(165,000)
Loss from continuing operations	(765,000)	(547,000)	(1,184,000)	(529,000)
Income from discontinued operations, net of provision for income taxes of $14,000 and $39000 for 3ME and 9ME Ended,2013 And $269000 for 3ME Ended and 9ME Ended,2012 respectively	18,000	60,000	72,000	197,000
Net income (loss)	$ (747,000)	$ (487,000)	$ (1,112,000)	$ (332,000)
Per share data:
Loss from continuing operations	$ (0.23)	$ (0.17)	$ (0.36)	$ (0.16)
Income from discontinued operations	$ 0.01	$ 0.02	$ 0.02	$ 0.06
Net loss	$ (0.22)	$ (0.15)	$ (0.34)	$ (0.10)
Weighted average shares outstanding	3,340,684	3,272,350	3,312,946	3,272,350