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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Exchange Rates And Linkage Bases
Details of the CPI and the representative exchange rates are as follows:
         
Exchange rate
   
Exchange rate
 
   
Israeli CPI
   
of one US dollar
   
of one Euro
 
   
Points
   
NIS
   
NIS
 
                   
December 31, 2020
   
101.1
     
3.215
     
3.944
 
December 31, 2019
   
101.8
     
3.456
     
3.878
 
December 31, 2018
   
101.2
     
3.748
     
4.292
 

   
%
 
                         
December 31, 2020
   
(0.7
)
   
(7.0
)
   
1.7
 
December 31, 2019
   
0.6
     
(7.8
)
   
(10.0
)
December 31, 2018
   
0.8
     
8.1
     
3.3
 
Activity In The Allowance For Doubtful Accounts
The activity in the allowance for doubtful accounts is as follows:

   
Year ended
December 31,
 
   
2020
   
2019
   
2018
 
                   
Opening balance
   
227
     
170
     
234
 
Provision for doubtful accounts
   
81
     
71
     
86
 
Customers write-offs/collection during the year
   
(111
)
   
(31
)
   
(134
)
Foreign currency translation adjustments
   
17
     
17
     
(16
)
                         
Closing balance
   
214
     
227
     
170
Fixed Assets Depreciation Rates
Depreciation is computed by the straight-line method over the estimated useful lives of the assets at the following annual rates:

   
%
     
Machinery and equipment
 
5-33
Leasehold improvements
 
6-33
Motor vehicles
 
10-15
Office furniture and equipment
 
6-15
Schedule of Assumptions for Binomial Option Pricing Model
The following assumptions were used in the B&S option pricing model for the year ended December 31, 2020.

   
2020
 
2019
 
2018
             
Dividend yield
 
0%
 
0%
 
0%
Expected volatility
 
86%
 
76%
 
71%
Risk-free interest
 
0.51%
 
1.47%
 
2.89%
Contractual term
 
10 years
 
10 years
 
10 years
Forfeiture rate
 
0%
 
0%
 
0%
Schedule of Accumulated Other Comprehensive Loss, Net
The total accumulated other comprehensive loss, net was comprised as follows:

   
Year ended December 31,
 
   
2020
   
2019
   
2018
 
                   
Foreign currency translation adjustments
   
674
     
139
     
(75
)
                         
Total accumulated other comprehensive income (loss)
   
674
     
139
     
(75
)