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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2004
USD ($)
Functional currency        
Official exchange rate of NIS 1 to US dollar 0.288 0.260 0.256  
Increase (decrease) of the Official exchange rate of NIS 1 to US dollar 10.90% 1.48% (33.00%)  
Liability for employee rights upon retirement        
Severance expenses $ 145,979 $ 147,754 $ 111,030  
Royalty-bearing grants        
Research and development grants       $ 93,300
Warranty expenses 8,540 8,605 $ 1,157  
Inventories        
Inventory valuation reserves amount $ 756,134