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RESEARCH AND DEVELOPMENT EXPENSES (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Total research and development expenses, net $ 3,207,466 $ 2,881,817 $ 2,268,345
Research and Development Expense [Member]      
Salaries and related expenses 1,587,567 1,510,491 1,279,216
Professional fees 5,169 58,954 71,930
Regulations related expenses 374,049 620,535 488,536
Patents 99,224 132,344 159,624
Materials [1] 972,779 346,238 153,669
Depreciation 33,786 32,508 19,133
Travel expenses 31,973 66,211 39,324
Vehicle maintenance 66,750 91,935 54,936
Other 36,169 22,601 1,977
Total research and development expenses, net $ 3,207,466 $ 2,881,817 $ 2,268,345
[1] Includes a reserve for slow moving inventory. See Note 3