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Research and Development Expenses - Schedule of Research and Development Expenses (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Total research and development expenses, net $ 3,032,863 $ 3,207,466
Research and Development Expense [Member]    
Salaries and related expenses [1] 1,776,146 1,587,567
Professional fees 113,514 5,169
Regulations related 132,585 374,049
Patents 91,302 99,224
Materials [2] 737,946 972,779
Bad Debt Expense 91,719
Depreciation 30,263 33,786
Travel expenses 31,973
Vehicle maintenance 56,112 66,750
Other 3,276 36,169
Total research and development expenses, net $ 3,032,863 $ 3,207,466
[1] net of effect of revers of SBC expenses due to forfeit See Note 10D
[2] Includes a reserve for slow moving inventory in the amount of approximant $700 thousand. See Note 3