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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) | $ 6,223 | $ 3,056 | $ (2,809)
Adjustments to reconcile net income (loss) to net cash from operating activities |  |  |
Depreciation and amortization | 20,124 | 20,841 | 20,923
Amortization of debt costs and other assets | 1,712 | 1,569 | 1,752
Provision for doubtful accounts | 1,639 | 1,117 | 3,431
Deferred income taxes | 21,286 | 10,460 | (1,156)
Share-based compensation | 12,557 | 15,966 | 7,214
Gain on sale of assets |  |  | (3,099)
Other-than-temporary impairment on debt securities | 5,585 | 2,727 |
Other | 1,398 | 1,061 | 2,854
Changes in operating assets and liabilities |  |  |
Restricted cash | 14,369 | (14,369) |
Trade accounts receivable | (6,562) | 392 | (1,547)
Inventories | (15,645) | (5,284) | 3,136
Prepaid expenses and other current assets | (6,352) | 701 | 8,697
Other long-term assets | 1,490 | (3,333) | (1,321)
Trade accounts payable | 2,324 | (1,771) | 3,011
Other current liabilities | (11,412) | 6,537 | 1,515
Other long-term liabilities | 4,605 | 5,037 | 1,009
Net cash from operating activities | 53,341 | 44,707 | 43,610
Cash flows from investing activities |  |  |
Capital expenditures for property, plant and equipment | (14,665) | (16,432) | (27,197)
Capital expenditures for intangible assets | (2,283) | (1,902) | (702)
Purchase of debt securities |  |  | (15,250)
Proceeds from sale of assets |  |  | 4,800
Net cash from investing activities | (16,474) | (21,947) | (38,349)
Other investing activities | 474 | (3,613) |
Cash flows from financing activities |  |  |
Proceeds from issuance of common shares | 7,783 | 19,720 | 5,254
Payments related to withholdings for share-based compensation | (3,800) | (2,407) | (1,550)
Payment of debt issuance costs | (445) |  | (1,825)
Changes in restricted cash |  |  | 34,424
Repurchase and retirement of common shares |  | (63,425) | (11,575)
Net cash from financing activities | 3,538 | (46,112) | 24,728
Effect of exchange rate changes on cash | 1,180 | (739) | (3,141)
Net change in cash and cash equivalents | 41,585 | (24,091) | 26,848
Cash and cash equivalents at the beginning of the year | 39,572 | 63,663 | 36,815
Cash and cash equivalents at the end of the year | 81,157 | 39,572 | 63,663
Cash paid during the year for: |  |  |
Interest | 811 | 672 | 852
Income taxes | $ 3,265 | $ 4,423 | $ 3,160

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- Definition The cash outflow to acquire debt securities classified as available-for-sale securities, because they are not classified as either held-to-maturity securities or trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26853-111562 Reference 3: 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 outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 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 outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + 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 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 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 + Details
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- Definition The net cash inflow or outflow from cash and cash items that are not available for withdrawal or usage. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + 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 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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