XML 32 R22.htm IDEA: XBRL DOCUMENT
v3.20.2

Stock Plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2020
Schedule of Stock-based Compensation Expense | The Company’s stock-based compensation expense recognized for the periods presented was as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Stock-based compensation expense by type of award: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock units |  | $ | 753 |  |  | $ | 299 |  |  | $ | 895 |  |  | $ | 497 |
Restricted stock awards |  |  | 47 |  |  |  | 96 |  |  |  | 109 |  |  |  | 256 |
Machine Box contingent common stock issuances |  |  | — |  |  |  | 523 |  |  |  | — |  |  |  | 1,227 |
Performance-based stock options |  |  | 1,953 |  |  |  | 2,020 |  |  |  | 3,921 |  |  |  | 3,956 |
Stock options |  |  | 1,306 |  |  |  | 2,703 |  |  |  | 3,455 |  |  |  | 5,060 |
Employee stock purchase plan |  |  | 72 |  |  |  | 137 |  |  |  | 207 |  |  |  | 289 |
Total |  | $ | 4,131 |  |  | $ | 5,778 |  |  | $ | 8,587 |  |  | $ | 11,285 |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Stock-based compensation expense by operating expense grouping: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  | $ | 198 |  |  | $ | 271 |  |  | $ | 376 |  |  | $ | 514 |
Research and development |  |  | 184 |  |  |  | 900 |  |  |  | 421 |  |  |  | 1,984 |
General and administrative |  |  | 3,749 |  |  |  | 4,607 |  |  |  | 7,790 |  |  |  | 8,787 |
|  | $ | 4,131 |  |  | $ | 5,778 |  |  | $ | 8,587 |  |  | $ | 11,285 |
Schedule of Restricted Stock Award Activity | The Company’s restricted stock award activity for the six months ended June 30, 2020 was as follows:
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average Grant |
|  | Shares |  |  | Date Fair Value |
Unvested at December 31, 2019 |  |  | 22,813 |  |  | $ | 7.50 |
Granted |  |  | 5,310 |  |  | $ | 2.98 |
Vested |  |  | (12,285 | ) |  | $ | 5.55 |
Unvested at June 30, 2020 |  |  | 15,838 |  |  | $ | 7.50 |
Schedule of Restricted Stock Unit Activity | The Company’s restricted stock unit activity for the six months ended June 30, 2020 was as follows:
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average Grant |
|  | Shares |  |  | Date Fair Value |
Unvested at December 31, 2019 |  |  | 142,145 |  |  | $ | 6.71 |
Granted |  |  | 800,532 |  |  | $ | 10.18 |
Forfeited |  |  | (5,500 | ) |  | $ | 8.81 |
Vested |  |  | (116,295 | ) |  | $ | 6.84 |
Unvested at June 30, 2020 |  |  | 820,882 |  |  | $ | 10.06 |
Schedule of Stock Option Activity | The activity during the six months ended June 30, 2020 related to all other stock options was as follows:
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  |  |  |  |  | Remaining |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual |  | Intrinsic |
|  | Options |  |  | Price |  |  | Term |  | Value |
Outstanding at December 31, 2019 |  |  | 5,196,778 |  |  | $ | 13.09 |  |  |  |  |  |  |
Granted |  |  | 551,500 |  |  | $ | 3.34 |  |  |  |  |  |  |
Exercised |  |  | (25,242 | ) |  | $ | 2.72 |  |  |  |  |  |  |
Forfeited |  |  | (133,839 | ) |  | $ | 9.04 |  |  |  |  |  |  |
Expired |  |  | (142,330 | ) |  | $ | 14.10 |  |  |  |  |  |  |
Outstanding at June 30, 2020 |  |  | 5,446,867 |  |  | $ | 12.22 |  |  | 7.3 years |  | $ | 15,731 |
Exercisable at June 30, 2020 |  |  | 4,160,659 |  |  | $ | 13.83 |  |  | 6.9 years |  | $ | 5,328 |
Employee Stock Purchase Plan [Member] |
Summary of Fair Value Assumptions of Stock Purchase Plan | The assumptions used in calculating the fair values of purchase rights granted under the ESPP during the six months ended June 30, 2020 are set forth in the table below:
Expected term (in years) |  | 0.5 - 2.0 |
Expected volatility |  | 65% - 81% |
Risk-free interest rate |  | 1.3% - 1.5% |
Expected dividend yield |  |  | — |
Stock Options [Member] |
Schedule of Fair Value Assumptions | The following assumptions were used to compute the grant date fair values of the stock options granted during the six months ended June 30, 2020:
Expected term (in years) |  |  |  | 6.0 - 6.1 |
Expected volatility |  |  |  | 68% - 73% |
Risk-free interest rate |  |  |  | 0.4% - 1.2% |
Expected dividend yield |  |  |  |  | — |
Performance-based Stock Options [Member] |
Schedule of Stock Option Activity | The activity during the six months ended June 30, 2020 related to stock options that are subject to performance-based vesting conditions tied to the future achievement of stock price goals by the Company was as follows:
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  |  |  |  |  | Remaining |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
|  | Options |  |  | Price |  |  | Term |  |  | Value |
Outstanding at December 31, 2019 |  |  | 4,484,739 |  |  | $ | 16.68 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (151,638 | ) |  | $ | 5.63 |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2020 |  |  | 4,333,101 |  |  | $ | 17.07 |  |  | 8.1 years |  |  | $ | 10,667 |
Exercisable at June 30, 2020 |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_EmployeeStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |