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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income (loss) | $ 6,981 | $ 132 | $ (27,158)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |
Depreciation | 628 | 1,208 | 2,202
Net loss (gain) on disposal of assets |  | (62) | 180
Gain on cumulative translation adjustment recognition from liquidation of subsidiaries | (1,703) | (38) |
Gain on release of tax liability due to expiration of statute of limitations | (1,409) | (3,272) | (7,747)
Equity loss (gain) of associates | 687 | (984) | 13,954
Investment impairment | 1,690 | 5,336 | 16,347
Gain on sale of short- term investment |  | (83) | (1,529)
Stock-based compensation expense | 866 | 2,238 | 1,546
Provision for doubtful accounts receivable | 4 | 1,564 | 79
Loan recovery, net |  |  | (538)
Deferred income taxes | (1,092) | 771 | 1,030
Changes in operating assets and liabilities |  |  |
Accounts receivable | 1,413 | (1,966) | (1,491)
Inventories and deferred costs | 1,212 | (190) | 35,973
Prepaids and other assets | (7,280) | 2,821 | 1,558
Accounts payable | 5,183 | 7,393 | (12,233)
Income taxes payable | (26) | (751) | 3,369
Customer advances | (7,218) | (1,054) | (17,352)
Deferred revenue | (3,172) | (10,556) | (18,610)
Other liabilities | 7,074 | 3,225 | (1,216)
Net cash provided by (used in) operating activities | 3,838 | 5,732 | (11,636)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Additions to property, plant and equipment | (732) | (1,527) | (917)
Net proceeds from sales of property, plant and equipment |  | 85 |
Change in restricted cash | (6,219) | 1,322 | 707
Purchase of short-term investments | (3,164) |  |
Purchase of investments | (481) | (300) | (1,670)
Proceeds from sale of investments | 500 | 7,683 | 16,228
Proceeds from sale of short-term investments |  |  | 3,076
Net cash provided by (used in) investing activities | (10,096) | 7,263 | 17,424
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from exercise of stock options | 113 |  | 39
Acquisition of non-controlling interests |  | (304) |
Repurchase of ordinary shares | (140) | (4,096) | (3,695)
Net cash used in financing activities | (27) | (4,400) | (3,656)
Effect of exchange rate changes on cash and cash equivalents | 2,112 | (1,723) | (2,906)
Net increase (decrease) in cash and cash equivalents | (4,173) | 6,872 | (774)
Cash and cash equivalents at beginning of year | 83,922 | 77,050 |
Cash and cash equivalents at end of year | 79,749 | 83,922 | 77,050
Cash paid (Recovered): |  |  |
Interest | 47 | 55 | 76
Income taxes | $ 2,012 | $ 3,311 | $ (363)

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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=65897068&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=68079674&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=64809438&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=65897068&loc=SL4591551-111686 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=64809438&loc=SL4573702-111684 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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- Definition The noncash component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. + References No definition available. + Details
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- Definition Amount before tax of foreign currency translation realized and unrealized gain (loss) recognized in the income statement. + References No definition available. + Details
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- Definition The increase (decrease) during the reporting period in the value of inventory and deferred costs of the reporting entity. + References No definition available. + Details
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- Definition Amount of increase (decrease) in operating assets classified as Prepaid and other. + References No definition available. + Details
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- Definition The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting. + References No definition available. + Details
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- Definition The cash inflow associated with the refund of investment interests. + References No definition available. + Details
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