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Share-based Compensation Expense (Tables) | 9 Months Ended
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Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of share-based compensation expense | Share-based compensation expense for the three and nine months ended September 30, 2013 and 2012 has been recorded as follows:
| Three months ended September 30, |  | Nine months ended September 30,
| 2013 |  | 2012 |  | 2013 |  | 2012
Cost of goods sold | $ | 2 |  |  | $ | 2 |  |  | $ | 7 |  |  | $ | 3 |
Sales and marketing | 21 |  |  | 15 |  |  | 55 |  |  | 45 |
Research and product development | 14 |  |  | 9 |  |  | 37 |  |  | 26 |
General and administrative | 42 |  |  | 39 |  |  | 106 |  |  | 102 |
| $ | 79 |  |  | $ | 65 |  |  | $ | 205 |  |  | $ | 176 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | In applying the Black-Scholes methodology to the options granted, the Company used the following assumptions:
| Three months ended September 30, |  | Nine months ended September 30,
| 2013 |  | 2012 |  | 2013 |  | 2012
Risk-free interest rate, average | 2.3% |  | 1.1% |  | 1.8% |  | 1.3%
Expected option life, average | 6.7 years |  | 7.3 years |  | 6.8 years |  | 7.2 years
Expected price volatility, average | 49.5% |  | 51.1% |  | 49.8% |  | 51.4%
Weighted average per share fair value | $4.28 |  | $2.13 |  | $4.38 |  | $2.19

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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