Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Research and Development Expenses, Net (Details)

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Research and Development Expenses, Net (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Research and Development Expense, Gross $ 459,184 $ 720,527 $ 483,953
Less: Grants from the OCS and others [1] (166,046)
Research and Development Expense 459,184 720,527 317,907
Salaries and related expenses [Member]      
Research and Development Expense, Gross 178,486 144,250 145,997
Stock-based compensation [Member]      
Research and Development Expense, Gross 12,077 22,883 48,056
Professional fees [Member]      
Research and Development Expense, Gross 22,271 18,888 37,426
Laboratory and materials [Member]      
Research and Development Expense, Gross 70,779 143,644 109,299
Patent expenses [Member]      
Research and Development Expense, Gross 82,367 65,654 24,956
Rent and maintenance [Member]      
Research and Development Expense, Gross 40,146 41,673 41,289
Liability for minimum royalties expenses [Member]      
Research and Development Expense, Gross [2] 238,000 50,000
Depreciation [Member]      
Research and Development Expense, Gross 25,650 24,083 20,695
Travel expenses [Member]      
Research and Development Expense, Gross 3,804 2,152 2,942
Insurance and other expenses [Member]      
Research and Development Expense, Gross $ 23,604 $ 3,293 $ 19,300
[1] See Note 10A and 10D.
[2] See Note 10B.