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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 29, 2014
Reconciliation of the Changes in the Company's Deferred Revenue Balance | A reconciliation of the changes in the Company’s deferred revenue balance for the three months ended March 29, 2014 and March 30, 2013 is as follows:
|  | Three Months Ended |
(in thousands) |  | March 29, 2014 |  |  | March 30, 2013 |
Balance, beginning of period |  | $ | 1,133 |  |  | $ | 1,004 |
Additions to deferral |  |  | 337 |  |  |  | 269 |
Revenue recognized |  |  | (386 | ) |  |  | (330 | )
Balance, end of period |  | $ | 1,084 |  |  | $ | 943 |
Reconciliation of the Changes in the Company's Warranty Liability | A reconciliation of the changes in the Company’s warranty liability for the three months ended March 29, 2014 and March 30, 2013 is as follows:
|  | Three Months Ended |
(in thousands) |  | March 29, 2014 |  |  | March 30, 2013 |
Balance, beginning of period |  | $ | 468 |  |  | $ | 453 |
Accruals for product warranties |  |  | 67 |  |  |  | 67 |
Cost of warranty claims and adjustments |  |  | (51 | ) |  |  | (74 | )
Balance, end of period |  | $ | 484 |  |  | $ | 446 |

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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 the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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