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Product Warranties | 9 Months Ended
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Sep. 30, 2013
Guarantees [Abstract] |
Product Warranties | 9. Product Warranties The Company generally offers a two-year warranty for all of its products. The Company provides for the estimated cost of product warranties at the time product revenue is recognized. Factors that affect the Company’s warranty reserves include the number of units sold, historical and anticipated rates of warranty returns, and the cost per return. The Company assesses the adequacy of the warranty reserves and adjusts the amounts as necessary. Warranty obligations are included in “Accrued expenses” in the accompanying Condensed Consolidated Balance Sheets. Product warranty activity for the three and nine months ended September 30, was as follows (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Balance at the beginning of the period |  | $ | 329 |  |  | $ | 461 |  |  | $ | 364 |  |  | $ | 572 |
Accruals for warranties for products sold in the period |  |  | 127 |  |  |  | 161 |  |  |  | 228 |  |  |  | 379 |
Fulfillment of warranty obligations |  |  | (110 | ) |  |  | (133 | ) |  |  | (220 | ) |  |  | (430 | )
Revisions of estimated obligations |  |  | 1 |  |  |  | (8 | ) |  |  | (25 | ) |  |  | (40 | )
Balance at the end of the period |  | $ | 347 |  |  | $ | 481 |  |  | $ | 347 |  |  | $ | 481 |

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + 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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