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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Cash provided by (used for) operating activities: |  |
Net income (loss) | $ (3,397) | $ 23,031
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities: |  |
Depreciation and amortization | 23,734 | 25,264
Provision for doubtful accounts | 275 | 2
Provision for inventory write-downs | 11,222 | 6,450
Gain on sale of Guangzhou factory | 0 | (36,978)
Deferred income taxes | 2,273 | (1,370)
Shares issued for employee benefit plan | 876 | 880
Employee and director stock-based compensation | 6,718 | 6,808
Performance-based common stock warrants | 1,381 | 747
Impairment of China factory equipment | 0 | 2,886
Changes in operating assets and liabilities: |  |
Accounts receivable and contract assets | (11,117) | (1,289)
Inventories | (6,819) | (9,535)
Prepaid expenses and other assets | 5,507 | (4,194)
Accounts payable and accrued liabilities | 11,686 | (13,142)
Accrued income taxes | (2,418) | (4,134)
Net cash provided by (used for) operating activities | 39,921 | (4,574)
Cash provided by (used for) investing activities: |  |
Proceeds from sale of Guangzhou factory | 0 | 51,291
Acquisitions of property, plant and equipment | (15,854) | (16,838)
Refund of deposit received toward sale of Guangzhou factory | 0 | (5,053)
Acquisitions of intangible assets | (1,505) | (1,911)
Net cash provided by (used for) investing activities | (17,359) | 27,489
Cash provided by (used for) financing activities: |  |
Borrowings under line of credit | 57,500 | 48,000
Repayments on line of credit | (71,000) | (82,500)
Proceeds from stock options exercised | 411 | 864
Treasury stock purchased | (1,741) | (12,564)
Contingent consideration payments in connection with business combinations | (4,251) | (3,858)
Net cash provided by (used for) financing activities | (19,081) | (50,058)
Effect of exchange rate changes on cash, cash equivalents and restricted cash | (1,959) | 1,799
Net increase (decrease) in cash, cash equivalents and restricted cash | 1,522 | (25,344)
Cash, cash equivalents and restricted cash at beginning of year | 53,207 | 67,339
Cash, cash equivalents and restricted cash at end of period | 54,729 | 41,995
Supplemental cash flow information: |  |
Income taxes paid | 5,608 | 5,453
Interest paid | $ 3,479 | $ 3,722

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- Definition The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment 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=116856206&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=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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=116634182&loc=SL114868664-224227 + Details
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- Definition The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + 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=118932676&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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