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INVENTORIES (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Inventory Disclosure [Abstract] |  |  |
Raw materials | $ 19,764 | $ 18,211 |
Work in progress | 194 | 349 |
Finished products | 30,669 | 43,572 |
Inventories, Net | 50,627 | 62,132 |
Inventory write-off | 2,919 | $ 4,836 | $ 2,814
Outstanding inventory purchase orders | $ 20,750 |  |

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- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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