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Product Warranty | 12 Months Ended
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Dec. 31, 2012
Product Warranty |
Product Warranty | Note 10. Product Warranty The Company generally offers a one year warranty for all of its systems, the terms and conditions of which vary depending upon the product sold. For all systems sold, the Company accrues a liability for the estimated cost of standard warranty at the time of system shipment and defers the portion of systems revenue attributable to the fair value of non-standard warranty. Costs for non-standard warranty are expensed as incurred. Factors that affect the Company's warranty liability include the number of installed units, historical and anticipated product failure rates, material usage and service labor costs. The Company periodically assesses the adequacy of its recorded liability and adjusts the amount as necessary. The changes in the Company's product warranty liability are as follows:
|  | Years Ended December 31, |
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|  | 2012 |  | 2011 |  | 2010 |
|  | (in thousands) |
Balance at January 1 (beginning of year) |  | $ | 3,697 |  | $ | 2,713 |  | $ | 726 |
Warranties issued during the period |  |  | 3,042 |  |  | 4,772 |  |  | 3,722 |
Settlements made during the period |  |  | (3,010 | ) |  | (5,275 | ) |  | (1,923 | )
Changes in estimate of liability for pre-existing warranties during the period |  |  | (1,928 | ) |  | 1,487 |  |  | 188 |
Balance at December 31 (end of year) |  | $ | 1,801 |  | $ | 3,697 |  | $ | 2,713 |
Amount classified as current |  | $ | 1,700 |  | $ | 3,556 |  | $ | 2,556 |
Amount classified as long-term |  |  | 101 |  |  | 141 |  |  | 157 |
Total Warranty Liability |  | $ | 1,801 |  | $ | 3,697 |  | $ | 2,713 |

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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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 14 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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