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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Cash flows from operating activities: |  |
Net loss | $ (22,107) | $ (74,354)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Loss on sale/disposal of fixed asset | 18 | 90
Depreciation and amortization | 6,774 | 9,747
Impairment of goodwill and purchased intangible assets | 0 | 49,821
Provision for bad debts | 1,005 | 39
Net impairment loss on marketable securities | 0 | 39
Inventory provision | 3,069 | 1,663
Share-based compensation expense | 2,848 | 5,409
Non-cash income tax expense | 266 | 194
Changes in assets and liabilities: |  |
Accounts receivable | (5,895) | (3,460)
Inventories | 8,922 | 4,089
Prepaid expenses and other assets | (2,169) | (1,238)
Accounts payable | 2,832 | (15,108)
Accrued expenses, income taxes, and other | 255 | 233
Net cash used in operating activities | (4,182) | (22,836)
Cash flows from investing activities: |  |
Purchases of property and equipment | (5,048) | (4,021)
Purchases of marketable securities | (22,238) | (31,871)
Marketable securities maturities / sales | 31,731 | 27,506
Net cash provided by (used in) investing activities | 4,445 | (8,386)
Cash flows from financing activities: |  |
Proceeds from the issuance of short-term debt | 13,400 | 5,000
Principal repayments of short-term debt | (10,969) | (5,000)
Principal payments under capital lease obligations | 0 | (46)
Proceeds from stock option exercises and ESPP net of taxes paid on vested restricted stock units | (515) | 583
Net cash provided by financing activities | 1,916 | 537
Effect of exchange rates on cash and cash equivalents | (85) | (43)
Net increase (decrease) in cash and cash equivalents | 2,094 | (30,728)
Cash and cash equivalents, beginning of period | 16,044 | 47,069
Cash and cash equivalents, end of period | 18,138 | 16,341
Cash paid during the year for: |  |
Interest | 31 | 1
Income taxes | 59 | 100
Supplemental disclosures of non-cash investing activities: |  |
Building rent incentives to fund leasehold improvements | $ 359 | $ 0

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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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt and payment of capital lease obligations. + References No definition available. + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 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 + 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=31042434&loc=d3e3602-108585 + Details
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