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SIGNIFICANT ACCOUNTING POLICIES (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2016
Significant Accounting Policies (Textual)        
Wrote off inventory amount $ 215 $ 64 $ 562  
Impairment losses    
Allowance for doubtful accounts 102 31    
Net of sales return reserve 0 86    
Deferred revenue recognized $ 330      
Revenue recognition description The estimated revenue expected to be recognized in the future related to the service type warranty amounts to $1,108 thousand, which is fulfilled over one to five years.      
Non-cash compensation expenses $ 749 1,108 2,766  
Maximum percentage of likely to be realized upon ultimate settlement 50%      
Percentage of monthly deposit by employees 8.33%      
Severance pay expense $ 125 156 169  
Royalty-bearing grants expenses 198  
Royalty expenses $ 46 $ 15    
Lease, description Upon adoption of this standard on January 1, 2019, the Company recorded right–of–use assets and corresponding lease liabilities of $2,099 thousand and $2,249 thousand, respectively. As of December 31, 2020, the right–of–use assets and corresponding lease liabilities in the Company’s consolidated balance sheets were $1,349 thousand and $1,583 thousand, respectively.      
YEC [Member]        
Significant Accounting Policies (Textual)        
Impairment losses      
Related party receivables as a percent of trade receivables, net 0.00% 0.00%    
Revenues from related party $ 0 $ 41 13  
Accounting Standards Update 2016-09 [Member]        
Significant Accounting Policies (Textual)        
Cumulative-effect adjustment to retained earnings/accumulated deficit       $ 11
Employees and non- employees [Member]        
Significant Accounting Policies (Textual)        
Non-cash compensation expenses $ 749 $ 1,108 $ 2,766  
ReStore product [Member]        
Significant Accounting Policies (Textual)        
Service policy 2 years      
SCI Products [Member]        
Significant Accounting Policies (Textual)        
Service policy 5 years