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SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Accounting Policies [Line Items]      
Accumulated deficit $ (683,825) $ (677,897)  
Capitalized balances related to sales commission 3,161 2,440  
Advertising expenses 309 233 $ 128
Warranty expenses 233 470 49
Warranty provisions amount 1,827 1,671  
Research and development expenses 641 1,695 1,386
Provision for doubtful accounts 422 1,104  
Bad debt expense (income) 3 65 (3)
Severance pay expenses 3,107 2,877 2,850
Contribution costs 603 545 507
Amortization of sales commission $ 3,078 $ 3,028 $ 1,705
The total weighted average number of shares related to the outstanding options excluded from the calculations of diluted earnings per share 3,441,644 3,099,144 1,685,386
Revenue recognized $ 16,169 $ 22,958 $ 19,470
Network equipment [Member] | Minimum [Member]      
Disclosure Of Accounting Policies [Line Items]      
Property and equipment, estimated useful life 2 years    
Network equipment [Member] | Maximum [Member]      
Disclosure Of Accounting Policies [Line Items]      
Property and equipment, estimated useful life 5 years