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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
 3 Months Ended 9 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Net revenue $ 306,000 $ 117,000 $ 781,000 $ 394,000
Cost of sales 526,000 327,000 1,352,000 767,000
Gross loss (220,000) (210,000) (571,000) (373,000)
Operating expenses:        
Selling and administrative expenses 664,000 595,000 1,910,000 1,765,000
Research and development 227,000 253,000 736,000 1,048,000
Total operating expenses 891,000 848,000 2,646,000 2,813,000
Operating loss (1,111,000) (1,058,000) (3,217,000) (3,186,000)
Other income (expense):        
Change in fair value of derivative liabilities 1,000 16,000 14,000 16,000
Interest expense (52,000) (190,000) (174,000) (286,000)
Net loss $ (1,162,000) $ (1,232,000) $ (3,377,000) $ (3,456,000)
Net loss per share - basic and diluted (in dollars per share) $ 0 $ (0.01) $ (0.01) $ (0.02)
Weighted average number of common shares outstanding - basic and diluted (in shares) 250,382,557 150,901,345 243,724,189 138,710,894