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Related Party Balances and Transactions (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Assets: |  |
Trade receivables, net | $ 20,381 | $ 20,266
Other accounts receivable and prepaid expenses | 1,766 | 2,685
Liabilities: |  |
Other accounts payables and accrued expenses | 2,281 | 3,428
Related Parties [Member] |  |
Assets: |  |
Trade receivables, net | 13,596 | 14,329
Other accounts receivable and prepaid expenses |  | 2
Liabilities: |  |
Trade payables | 81 | 63
Other accounts payables and accrued expenses | $ 12 | $ 140

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