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SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term deposits, weighted average interest rate | 0.71% | 0.85% |  |
Short-term bank deposits due to hedging transacations | $ 5,000 | $ 2,500 |  |
Inventory write-offs | 4,593 | 1,928 | $ 629 |
Cumulative inventory write-off | 9,103 | 4,624 |  |
Reserve for sales returns | 233 | 290 |  |
Severance expense | 2,465 | 3,619 | 2,249 |
Allowance for credit losses | 2,398 | 2,309 | 1,867 | $ 1,415
Grants participations excluded from research and development costs | $ 167 | 339 | 378 |
Weighted average cost of debt | 2.00% |  |  |
ROU assets | $ 8,513 | 4,458 |  |
ROU lease liabilites | 8,252 |  |  |
Remaining performance obligations as of the balance date for long- term | 89,000 |  |  |
Amortization of deferred commission | 1,394 |  |  |
Revenues | $ 145,600 | $ 135,922 | $ 110,100 |
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 | 2,613,894 | 2,897,273 | 3,105,801 |
Netonomy [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Expected volatility | 20.70% |  |  |
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 | $ 36,000 |  |  |
Grants from the Israel Innovation Authority [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Grants participations excluded from research and development costs | (42) | $ 339 | $ 378 |
Grants from the Spain Tax Authorities [Member] |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Grants participations excluded from research and development costs | $ 209 |  |  |

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