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Balance Sheets and Statements of Operations Components (Tables) | 6 Months Ended
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Jun. 30, 2016
Property, Plant and Equipment [Abstract] |
Schedule of Inventory | Components of inventory as of June 30, 2016 and December 31, 2015 are shown below (in thousands):
| June 30, 2016 |  | December 31, 2015
Raw materials | $ | 6,340 |  |  | $ | 9,418 |
Finished goods | 7,993 |  |  | 8,873 |
Total inventory | $ | 14,333 |  |  | $ | 18,291 |
Schedule of Property and Equipment, Net | Components of property and equipment, net as of June 30, 2016 and December 31, 2015 are shown below (in thousands):
| June 30, 2016 |  | December 31, 2015
Equipment | $ | 39,128 |  |  | $ | 35,836 |
Software | 3,801 |  |  | 3,548 |
Furniture and fixtures | 857 |  |  | 864 |
Leasehold improvements | 2,536 |  |  | 2,492 |
Construction in progress | 9 |  |  | 83 |
Property and equipment, gross | 46,331 |  |  | 42,823 |
Less: accumulated depreciation and amortization | (37,414 | ) |  | (33,920 | )
Total property and equipment, net | $ | 8,917 |  |  | $ | 8,903 |
Schedule of Goodwill | Activity related to goodwill for the six months ended June 30, 2016 and 2015 is as follows (in thousands):
| June 30, 2016 |  | December 31, 2015
Balance at beginning of period | $ | 72 |  |  | $ | 72 |
Acquisitions | 1,235 |  |  | — |
Total goodwill | $ | 1,307 |  |  | $ | 72 |
Schedule of Acquired Intangible Assets | Purchased intangible assets, net consisted of the following (in thousands):
| June 30, 2016 |  | December 31, 2015
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Value
Developed technology | $ | 5,050 |  |  | $ | — |  |  | $ | 5,050 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Customer relationships | 1,746 |  |  | (1,746 | ) |  | — |  |  | 1,746 |  |  | (1,746 | ) |  | — |
Patent | 1,436 |  |  | (707 | ) |  | $ | 729 |  |  | 1,436 |  |  | (641 | ) |  | 795 |
Total | $ | 8,232 |  |  | $ | (2,453 | ) |  | $ | 5,779 |  |  | $ | 3,182 |  |  | $ | (2,387 | ) |  | $ | 795 |
Schedule of Future Amortization Expense for Purchased Finite-lived Intangible Assets | Total future amortization expense for purchased intangible assets that have finite lives, based on our existing intangible assets and their current estimated useful lives as of June 30, 2016, is as follows (in thousands):
Fiscal Years Ending December 31, |  |
Remainder of 2016 |  | $ | 571 |
2017 |  | 1,143 |
2018 |  | 1,143 |
2019 |  | 1,143 |
2020 |  | 1,143 |
Thereafter |  | 636 |
Total |  | $ | 5,779 |
Schedule of Accrued Liabilities | Accrued Liabilities Accrued liabilities as of June 30, 2016 and December 31, 2015 consists of the following (in thousands):
| June 30, 2016 |  | December 31, 2015
Accrued compensation and benefits | $ | 19,808 |  |  | $ | 18,134 |
Accrued tax liabilities | 2,062 |  |  | 4,520 |
Other | 6,960 |  |  | 5,103 |
Total accrued liabilities | $ | 28,830 |  |  | $ | 27,757 |
Schedule of Deferred Revenue | Deferred revenue as of June 30, 2016 and December 31, 2015 consists of the following (in thousands):
| June 30, 2016 |  | December 31, 2015
Deferred revenue: |  |  |
Products | $ | 2,699 |  |  | $ | 3,233 |
Services | 73,064 |  |  | 69,571 |
Total deferred revenue | 75,763 |  |  | 72,804 |
Less: current portion | (51,384 | ) |  | (49,572 | )
Non-current portion | $ | 24,379 |  |  | $ | 23,232 |

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- Definition Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- Definition Tabular disclosure of finite-lived and indefinite-lived intangible assets acquired as part of a business combination. + References No definition available. + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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