Quarterly report pursuant to Section 13 or 15(d)

4. Property and Equipment (Details)

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4. Property and Equipment (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Property and equipment, gross $ 97,000 $ 97,000
Less: accumulated depreciation (76,000) (73,000)
Property and equipment, net 21,000 24,000
Office equipment [Member]    
Property and equipment, gross 30,000 30,000
Furniture and fixtures [Member]    
Property and equipment, gross 5,000 5,000
Testing equipment [Member]    
Property and equipment, gross 37,000 37,000
Leasehold Improvements [Member]    
Property and equipment, gross $ 25,000 $ 25,000