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Statements of Operations - USD ($)
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Sales $ 360,000 $ 0
Cost of goods sold 251,000 0
Gross profit 109,000 0
Operating expenses:    
Research and development 1,174,000 1,325,000
General and administrative 1,328,000 1,276,000
Total operating expenses 2,502,000 2,601,000
Loss from operations (2,393,000) (2,601,000)
Other income:    
Interest income 14,000 12,000
Net Loss $ (2,379,000) $ (2,589,000)
Net Loss per share - basic and fully diluted $ (0.16) $ (0.20)
Weighted average number of shares outstanding - basic and fully diluted 14,862,558 12,869,092