Summary of Significant Accounting Policies (Tables)
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9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2014
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Changes in Warranty Liability |
Changes in the Company’s warranty liability for the nine months ended September 30, 2014 and 2013 are as follows:
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Fair Value Remeasurement Based on Significant Inputs Not Observable, Level 3 Measurement |
The fair value remeasurement is based on significant inputs not observable in the market and thus represents a Level 3 measurement as defined in the fair value hierarchy. In each period, the Company reassesses its current estimates of performance relative to the stated targets and adjusts the liability to fair value.
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Summary of Changes in Allowance for Doubtful Accounts |
The following summarizes the changes in the allowance for doubtful accounts for the periods indicated:
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Estimated Useful Lives of Property and Equipment |
The estimated useful lives of property and equipment are as follows:
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Valuation Assumptions used in Computation of Stock Option Expense |
For the nine months ended September 30, 2014, the Company computed expense for each group utilizing the following assumptions:
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