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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 27, 2014 | Sep. 28, 2013
Cash flows from operating activities: |  |
Net loss | $ (26,479) | $ (14,702)
Reconciliation of net loss to net cash used in operating activities: |  |
Depreciation and amortization | 8,660 | 6,536
Stock-based compensation | 5,115 | 5,912
Excess tax benefit from equity awards | 0 | 467
Loss on disposal of fixed assets | 80 | 173
Provision for doubtful accounts receivable | 11 | 0
Inventory write-down | 1,109 | 6,307
Deferred income taxes | 20,776 | (9,659)
Changes in fair value of contingent consideration | 118 | 1,045
Changes in assets and liabilities: |  |
Accounts receivable | 4,871 | (1,818)
Inventories | (7,998) | (7,173)
Inventories-delivered systems | 6,400 | (300)
Prepaid expenses and other | 1,751 | 820
Accounts payable, accrued and other liabilities | (4,535) | 6,798
Deferred revenue | (16,270) | 2,044
Income taxes payable | (3,158) | (363)
Net cash used in operating activities | (9,549) | (3,913)
Cash flows from investing activities: |  |
Maturities of marketable securities | 25,570 | 38,030
Purchases of marketable securities | (26,810) | (40,797)
Purchases of property, plant and equipment | (2,800) | (3,516)
Net cash used in investing activities | (4,040) | (6,283)
Cash flows from financing activities: |  |
Payments to Zygo Corporation related to acquisition | (470) | (735)
Repayments of debt obligations | 0 | (5,224)
Proceeds from sale of shares under employee stock option and purchase plans | 5,852 | 3,192
Excess tax benefit from equity awards | 0 | (467)
Taxes paid on net issuance of stock awards | (664) | (86)
Repurchases of common stock | 0 | (5,000)
Net cash provided by (used in) financing activities | 4,718 | (8,320)
Effect of exchange rate changes on cash and cash equivalents | (269) | (566)
Net decrease in cash and cash equivalents | (9,140) | (19,082)
Cash and cash equivalents, beginning of period | 44,765 | 62,915
Cash and cash equivalents, end of period | 35,625 | 43,833
Supplemental disclosure of non-cash investing activities: |  |
Transfer of inventory to property, plant and equipment, net | $ 4,627 | $ 3,106

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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=31042434&loc=d3e3213-108585 + Details
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- Definition The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. 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 -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=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + 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 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + 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 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 for debt initially having maturity due after one year or beyond 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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