v2.4.1.9

Stock Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of Option Activity under Plans and Related Information | The following table summarizes option activity under the plans, and related information:
|  | Shares Available for Grant |  |  | Stock Options Outstanding |  |  | Weighted- average Exercise Price |
Balance—December 31, 2011 |  |  | 306,188 |  |  |  | 496,908 |  |  | $ | 3.70 |
Granted |  |  | (211,056 | ) |  |  | 211,056 |  |  |  | 0.55 |
Exercised |  |  | — |  |  |  | (2,924 | ) |  |  | 3.36 |
Forfeited |  |  | 32,585 |  |  |  | (32,585 | ) |  |  | 3.43 |
Expired |  |  | 52,549 |  |  |  | (52,549 | ) |  |  | 3.49 |
Balance—December 31, 2012 |  |  | 180,266 |  |  |  | 619,906 |  |  |  | 2.67 |
Granted |  |  | (4,081 | ) |  |  | 4,081 |  |  |  | 0.48 |
Exercised |  |  | — |  |  |  | (212 | ) |  |  | 0.55 |
Forfeited |  |  | 7,247 |  |  |  | (7,247 | ) |  |  | 2.33 |
Expired |  |  | 149,563 |  |  |  | (149,563 | ) |  |  | 4.73 |
Balance—December 31, 2013 |  |  | 332,995 |  |  |  | 466,965 |  |  |  | 1.99 |
Additional options authorized |  |  | 940,884 |  |  |  | — |  |  |  | — |
Granted |  |  | (585,345 | ) |  |  | 585,345 |  |  |  | 11.76 |
Assumed in business combination |  |  | — |  |  |  | 23,229 |  |  |  | 2.06 |
Exercised |  |  | — |  |  |  | (9,363 | ) |  |  | 2.14 |
Forfeited |  |  | 20,591 |  |  |  | (20,591 | ) |  |  | 10.36 |
Expired |  |  | 13,781 |  |  |  | (13,781 | ) |  |  | 2.74 |
Balance—December 31, 2014 |  |  | 722,906 |  |  |  | 1,031,804 |  |  |  | 7.36 |
Schedule of Outstanding, Exercisable and Vested Stock Options | Outstanding, exercisable and vested stock options as of December 31, 2014 are summarized as follows:
|  | Options Outstanding & Exercisable at December 31, 2014 |  |  | Options Vested at December 31, 2014 |
Range of Exercise Prices |  | Number of Options Outstanding |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Weighted Average Exercise Price |  |  | Number of Options |  |  | Weighted Average Exercise Price |
$0.27 - 0.55 |  |  | 200,002 |  |  |  | 7.80 |  |  | $ | 0.55 |  |  |  | 136,560 |  |  | $ | 0.55 |
$2.05 - 3.01 |  |  | 153,469 |  |  |  | 6.36 |  |  |  | 2.78 |  |  |  | 147,641 |  |  |  | 2.77 |
$3.36 - 3.97 |  |  | 110,188 |  |  |  | 3.55 |  |  |  | 3.47 |  |  |  | 110,188 |  |  |  | 3.47 |
$7.03 - 12.40 |  |  | 568,145 |  |  |  | 9.38 |  |  |  | 11.75 |  |  |  | 21,012 |  |  |  | 11.82 |
|  |  | 1,031,804 |  |  |  | 8.00 |  |  |  | 7.36 |  |  |  | 415,401 |  |  |  | 2.68 |
Summary of Options Outstanding Vested and Expected to Vest | Options outstanding that have vested and are expected to vest at December 31, 2014 are as follows:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Aggregate Intrinsic Value (In thousands) |
Vested |  |  | 415,401 |  |  | $ | 2.68 |  |  |  | 6.17 |  |  | $ | 1,994 |
Expected to Vest |  |  | 616,403 |  |  |  | 10.51 |  |  |  | 9.19 |  |  | $ | 457 |
Total |  |  | 1,031,804 |  |  |  | 7.36 |  |  |  | 7.98 |  |  | $ | 2,451 |
Weighted-Average Assumptions Used to Fair Value of Share-Based Awards | The fair value of stock-based awards was estimated using the Black-Scholes option-pricing model using the following weighted-average assumptions.
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Expected term (in years) |  |  | 5.1 |  |  |  | 6.0 |  |  |  | 6.0 |
Expected volatility |  |  | 42.18 | % |  |  | 45.25 | % |  |  | 46.55 | %
Risk-free interest rate |  |  | 1.69 | % |  |  | 1.21 | % |  |  | 1.01 | %
Expected dividend yield |  |  | — | % |  |  | — | % |  |  | — | %
Summary of Stock-Based Compensation Expense Related to Stock Options Included in Statements of Operations and Comprehensive Loss | The following table summarizes stock-based compensation expense related to stock options for the years ended December 31, 2013, 2013 and 2012, included in the statements of operations and comprehensive loss as follows (in thousands):
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Cost of testing |  | $ | 28 |  |  | $ | 3 |  |  | $ | 2 |
Research and development |  |  | 88 |  |  |  | 7 |  |  |  | 13 |
Sales and marketing |  |  | 29 |  |  |  | 3 |  |  |  | 5 |
General and administrative |  |  | 390 |  |  |  | 59 |  |  |  | 49 |
|  | $ | 535 |  |  | $ | 72 |  |  | $ | 69 |
Schedule of Shares Issued and Associated Expense | The shares issued and associated expense were as follows:
Service Period Three Months Ended |  | Number of Shares Issued |  |  | Fair Market Value per Share at Date of Issuance |  |  | Fair Value of Shares Issued |
September 30, 2014 |  |  | 4,899 |  |  | $ | 7.03 |  |  | $ | 34,440 |
December 31, 2014 |  |  | 8,277 |  |  |  | 7.25 |  |  |  | 60,008 |
Total |  |  | 13,176 |  |  |  |  |  |  | $ | 94,448 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the following for fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position: the number, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term of options (or share units) outstanding. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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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- Definition Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible). + 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 (e) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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