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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 |  | $ 4,820 | $ 6,981 | $ 132
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |
Depreciation |  | 702 | 628 | 1,208
Net gain on disposal of assets |  | (21) |  | (62)
Gain on cumulative translation adjustment recognition from liquidation of subsidiaries |  |  | (1,703) | (38)
Gain on liquidation of a subsidiary |  | (909) |  |
Gain on release of tax liability due to expiration of statute of limitations |  | (2,462) | (1,409) | (3,272)
Equity loss (gain) of associates |  | 613 | 687 | (984)
Investment impairment |  | 370 | 1,690 | 5,336
Gain on sale of short- term investment |  |  |  | (83)
Stock-based compensation expense |  | 1,097 | 866 | 2,238
Provision for doubtful accounts receivable |  | 812 | 4 | 1,564
Deferred income taxes |  | 705 | (1,092) | 771
Changes in operating assets and liabilities |  |  |  |
Accounts receivable |  | (44,815) | 1,413 | (1,966)
Inventories and deferred costs |  | 6,565 | 1,212 | (190)
Prepaids and other assets |  | 5,540 | (7,280) | 2,821
Accounts payable |  | 23,193 | 5,183 | 7,393
Income taxes payable |  | (929) | (26) | (751)
Customer advances |  | (6,044) | (7,218) | (1,054)
Deferred revenue |  | (4,930) | (3,172) | (10,556)
Other liabilities |  | (10,413) | 7,074 | 3,225
Net cash provided by (used in) operating activities |  | (26,106) | 3,838 | 5,732
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Purchase of property, plant and equipment |  | (225) | (732) | (1,527)
Proceeds from sales of property, plant and equipment |  |  |  | 85
Acquisition of uSTAR, net of cash acquired |  | (673) |  |
Purchase of short-term investments |  |  | (3,164) |
Purchase of investments |  |  | (481) | (300)
Proceeds from sale of investments |  |  | 500 | 7,683
Proceeds from sale of short-term investments |  | 3,143 |  |
Net cash provided by (used in) investing activities | [1] | 2,245 | (3,877) | 5,941
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Proceeds from exercise of stock options |  | 101 | 113 |
Acquisition of non-controlling interests |  |  |  | (304)
Repurchase of ordinary shares |  | (2,525) | (140) | (4,096)
Net cash used in financing activities |  | (2,424) | (27) | (4,400)
Effect of exchange rate changes on cash and cash equivalents |  | (701) | 2,112 | (1,723)
Net increase (decrease) in cash and cash equivalents | [1] | (26,986) | 2,046 | 5,550
Cash, restricted cash and cash equivalents at beginning of year | [1] | 100,686 | 98,640 | 93,090
Cash, restricted cash and cash equivalents at end of year | [1] | 73,700 | 100,686 | 98,640
Cash paid: |  |  |  |
Interest |  | 47 | 48 | 55
Income taxes |  | $ 1,221 | $ 2,012 | $ 3,311
[1] | The Company adopted ASU 2016-18 in 2018, and adjusted the 2017 and 2016 balances retrospectively.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591551-111686 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3000-108585 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591552-111686 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition Cash paid (recovered). + 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 Increase decrease in revenue from contract with customer advances. + 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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- Definition Represents the amount of reversal of tax provision. + References No definition available. + Details
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