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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Cash flows from operating activities |  |  |
Net income | $ 9,871 | $ 8,243 | $ 5,715
Adjustments required to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation | 454 | 379 | 416
Write-down of obsolete inventory | 873 | 768 | 780
Liability for employees' severance benefits, net | 23 | (42) | 58
Discount of marketable securities | 579 | 462 | 467
Share-based compensation expense | 544 | 437 | 231
Deferred taxes | 22 | 86 | 156
Capital (gain) loss |  | (6) | 2
Changes in assets and liabilities: |  |  |
Accounts receivable - trade | (3,741) | (1,780) | (1,573)
Accounts receivable - other | (537) | (717) | (184)
Accounts receivable - Related parties | (37) | (71) | (17)
Inventories | (4,495) | (3,801) | (4,243)
Trade accounts payable | 3,828 | 250 | 1,467
Other accounts payable and accrued expenses | 1,436 | 508 | 51
Accounts payable - Related parties | 69 | (25) | 25
Net cash provided by operating activities | 8,889 | 4,691 | 3,351
Cash flows from investing activities |  |  |
Proceeds from (investments in) short term bank deposits, net | 2,483 | 4,199 | (1,956)
Purchases of property, plant and equipment | (798) | (486) | (466)
Proceeds from maturity of marketable securities | 8,955 | 9,531 | 11,303
Purchases of marketable securities | (17,992) | (13,071) | (12,972)
Net cash provided by (used in) investing activities | (7,352) | 173 | (4,091)
Cash flows from financing activities |  |  |
Exercise of options | 277 | 164 | 259
Net cash provided by financing activities | 277 | 164 | 259
Effect of exchange rate changes on cash balances held | 9 | (202) | (115)
Increase (decrease) in cash and cash equivalents | 1,823 | 4,826 | (596)
Cash and cash equivalents at beginning of year | 11,483 | 6,657 | 7,253
Cash and cash equivalents at end of year | 13,306 | 11,483 | 6,657
Supplementary cash flow information Non-cash transactions: |  |  |
Investments in fixed assets | 9 | 80 |
Supplementary cash flow information Cash paid during the year for: |  |  |
Income taxes | $ 635 | $ 623 | $ 1,148

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- Definition The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3536-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3521-108585 + Details
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