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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash flows from operating activities: |  |  |
Net income (loss) | $ (2,344) | $ 23,046 | $ 15,560
Adjustments required to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 9,691 | 7,758 | 9,205
Share-based compensation expense | 2,053 | 1,980 | 1,203
Accrued severance pay and pensions, net | 271 | (11) | 3
Decrease (increase) in trade receivables, net | 4,533 | (11,098) | (6,403)
Decrease (increase) in other accounts receivable and prepaid expenses (including other long term assets) | 3,262 | 4,624 | (259)
Increase in inventories | (9,475) | (956) | (8,592)
Increase (decrease) in trade payables | (15,933) | 2,340 | 4,836
Increase (decrease) in deferred revenues | 4,150 | (650) | 2,575
Decrease (increase) in deferred tax assets, net | (258) | (6,601) | 497
Increase (decrease) in other accounts payable and accrued expenses (including other long term liabilities) | (8,881) | 2,062 | (1,474)
Net cash provided by (used in) operating activities | (12,931) | 22,494 | 17,151
Cash flows from investing activities: |  |  |
Purchase of property and equipment, net | (11,592) | (10,303) | (8,533)
Purchase of intangible assets, net | (3,274) | (3,412) | (1,407)
Proceeds from (repayment of) bank deposits | 1,002 | 48 | (996)
Investment in shares |  | (1,628) |
Net cash used in investing activities | (13,864) | (15,295) | (10,936)
Cash flows from financing activities: |  |  |
Proceeds from (repayment of) bank credits and loans, net | 14,600 |  | (17,000)
Proceeds from exercise of stock options | 602 | 2,611 | 294
Net cash (used in) provided by financing activities | 15,202 | 2,611 | (16,706)
Translation adjustments on cash and cash equivalents | (49) | (106) | 30
Increase (decrease) in cash and cash equivalents | (11,642) | 9,704 | (10,461)
Cash and cash equivalents at the beginning of the year | 35,581 | 25,877 | 36,338
Cash and cash equivalents at the end of the year | 23,939 | 35,581 | 25,877
Supplemental disclosure of cash flow information: |  |  |
Cash paid for income taxes | 3,833 | 1,617 | 2,493
Cash paid for interest on bank loans | $ 1,796 | $ 1,752 | $ 1,837

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