Description of Business and Summary of Significant Accounting Policies (Tables)
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12 Months Ended |
Dec. 31, 2017 |
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| Description of Business and Summary of Significant Accounting Policies |
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| Schedule of revenue from United States, Canada and all other international dealers and distributors combined |
The following table sets forth revenue from the United States., Canadian and all other international dealers and distributors combined (in thousands):
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Years Ended
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December 31,
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2017
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2016
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2015
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Revenue-United States
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$
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169,930
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$
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148,803
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$
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109,435
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Revenue-Canada
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20,812
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16,084
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14,285
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Revenue-all other international sources
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53,983
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43,915
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39,459
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Total revenue
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$
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244,725
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$
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208,802
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$
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163,179
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International revenue (excluding Canada) as a percent of total revenue
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22
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%
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21
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%
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24
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%
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| Schedule of changes in the product warranty liability |
The following table presents the changes in the product warranty liability (in thousands):
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Years Ended
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December 31,
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2017
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2016
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2015
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Balance at the beginning of the period
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$
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1,945
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$
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1,415
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$
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1,191
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Warranty costs accrued
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3,147
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2,458
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2,068
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Warranty claims
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(3,060)
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(1,928)
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(1,844)
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Balance at the end of the period
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$
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2,032
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$
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1,945
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$
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1,415
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| Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted net income per share |
The following table presents the reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per share (in thousands):
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Years Ended
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December 31,
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2017
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2016
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2015
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Numerator:
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Net income (loss)
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$
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15,979
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$
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12,954
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$
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(1,652)
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Denominator:
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Weighted average common stock outstanding for basic net income per common share
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24,803
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23,402
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24,121
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Effect of dilutive securities—stock options and restricted stock units
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1,972
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958
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—
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Weighted average common shares and dilutive securities outstanding
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26,775
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24,360
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24,121
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| Schedule of anti-dilutive weighted-average common stock equivalents excluded from the calculation of diluted net income per share |
The following weighted-average common stock equivalents were anti-dilutive and therefore were excluded from the calculation of diluted net income (loss) per share (in thousands):
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Years Ended
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December 31,
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2017
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2016
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2015
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Options to purchase common stock
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660
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2,328
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4,756
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Restricted stock units
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5
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17
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162
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Total
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665
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2,345
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4,918
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| Schedule of changes in the allowance for doubtful accounts |
The following table presents the changes in the allowance for doubtful accounts (in thousands):
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Years Ended
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December 31,
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2017
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2016
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2015
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Balance at beginning of period
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$
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981
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$
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824
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$
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705
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Provision
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815
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345
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345
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Deductions
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(649)
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(188)
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(226)
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Balance at end of period
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$
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1,147
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$
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981
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$
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824
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| Schedule of estimated useful lives of property and equipment |
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Computer equipment and software
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3
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-
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4
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years
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Manufacturing tooling and test equipment
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2
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-
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4
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years
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Lab and warehouse equipment
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2
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-
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4
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years
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Furniture and fixtures
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2
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-
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5
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years
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Other
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2
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-
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4
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years
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