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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income (loss) $ (4,408) $ 2,396 $ 62
Adjustments to reconcile net income to net cash provided by (used in) operating activities:      
Depreciation and amortization 4,185 3,941 3,636
Loss on sale of property, plant and equipment 54 12
Loss (gain) from change in fair value of derivatives 382 (490) (152)
Interest from short-term bank deposits and restricted deposits (6) (24)
Change in provision for doubtful accounts (347) 321 (29)
Share in results of affiliated companies 140 210 55
Share based compensation 272 174 105
Liability in respect of employee rights upon retirement (587) 241 123
Deferred income taxes, net (102) 382 1,670
Changes in operating assets and liabilities:      
Decrease (increase) in trade accounts receivable 6,814 (4,493) (2,392)
Decrease (increase) in other current assets and prepaid expenses (1,575) 488 1,487
Decrease (increase) in inventory 161 210 (2,707)
Increase (decrease) in trade accounts payable (969) 578 1,192
Increase (decrease) in accrued expenses (1,920) (1,505) 2,521
Increase (decrease) in other long-term liabilities 34 (5) (38)
Net cash provided by operating activities 2,080 2,496 5,521
CASH FLOWS FROM INVESTING ACTIVITIES:      
Investment in affiliated company (26) (383) (905)
Funds in respect of employee rights upon retirement (22) (156) 2
Proceeds from sale of property and equipment 7 17
Purchase of property and equipment (4,270) (3,520) (5,702)
Maturities of short-term deposits 470 500 7,182
Net cash provided by (used in) investing activities (3,841) (3,559) 594
CASH FLOWS FROM FINANCING ACTIVITIES:      
Dividend paid (3,000) (3,000)
Payment of contingent consideration (500)
Exercise of options 197 144 130
Net cash provided by (used in) financing activities 197 (2,856) (3,370)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (1,564) (3,919) 2,745
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 17,514 21,433 18,688
CASH AND CASH EQUIVALENTS AT END OF YEAR 15,950 17,514 21,433
SUPPLEMENTARY INFORMATION ON INVESTING ACTIVITIES NOT INVOLVING CASH FLOW:      
Purchase of property, plant and equipment on credit 523 632 268
Supplemental disclosure of cash flow information:      
Interest paid (10) (35) (2)
Income taxes paid $ (1,087) $ (2,397) $ (1,473)