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SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Exchange rate financial gains and (losses) related revaluation of assets and liabilities | $ 442 | $ (454) | $ 552 |
Short-term deposits, weighted average interest rate | 4.05% | 0.71% |  |
Short-term bank deposits due to hedging transacations | $ 5,000 | $ 5,000 |  |
Inventory write-offs | 905 | 4,593 | 1,928 |
Cumulative inventory write-off | 8,862 | 9,103 |  |
Reserve for sales returns | 90 | 233 |  |
Severance expense | 3,516 | 2,465 | 3,619 |
Allowance for credit losses | 2,908 | 2,398 | 2,309 | $ 1,867
Amount of past due receivables | 15,000 |  |  |
Past due receivables amount over from two resellers in Africa and Latin America | 10,100 |  |  |
Grants participations excluded from research and development costs | $ 825 | 167 | 339 |
Weighted average cost of debt | 18.50% |  |  |
ROU assets | $ 5,387 | 8,513 |  |
ROU lease liabilites | 5,121 |  |  |
Remaining performance obligations as of the balance date for long- term | 88,000 |  |  |
Amortization of deferred commission | 1,863 |  |  |
Revenues | $ 122,737 | $ 145,600 | $ 135,922 |
Restricted Stock Units (RSUs) [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Outstanding options and warrants excluded from the calculation of diluted income per share | 2,735,125 | 2,613,894 | 2,897,273 |
Minimum [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Annual pre-vesting forfeiture rate | 0.00% | 0.00% | 0.00% |
Remaining performance obligations as of the balance date for short-term | $ 53,000 |  |  |
Maximum [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Annual pre-vesting forfeiture rate | 30.00% | 30.00% | 30.00% |
Remaining performance obligations as of the balance date for long- term | $ 35,000 |  |  |
Grants from the Israel Innovation Authority [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Grants participations excluded from research and development costs | 539 | $ (42) | $ 339 |
Grants from the Spain Tax Authorities [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Grants participations excluded from research and development costs | $ 286 | $ 209 |  |

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