XML 37 R27.htm IDEA: XBRL DOCUMENT
v3.21.1

Note 11 - Equity Incentive Plan (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Notes Tables |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Three Months Ended March 31,
|  | 2021 |  | 2020
Risk free interest rate |  | 0.3% | - | 0.6% |  | 0.4% | - | 1.6%
Expected volatility |  | 54.8% | - | 55.4% |  | 46.5% | - | 49.4%
Expected life (years) |  |  | 4.0 |  |  |  | 4.0 |
Expected dividend yield |  |  | 0.0% |  |  |  | 0.0% |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2021 |  |  | 2020 |
Cost of revenue |  | $ | 129 |  |  | $ | 146 |
Research and development |  |  | 241 |  |  |  | 196 |
Selling, general and administrative |  |  | 1,889 |  |  |  | (549 | )
Total stock-based compensation expense |  | $ | 2,259 |  |  | $ | (207 | )
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2021 |  |  | 2020 |
Grants: |  |  |  |  |  |  |  |
Stock options |  |  | 421,463 |  |  |  | 210,775 |
RSUs |  |  | 258,417 |  |  |  | 100,631 |
PSUs |  |  | - |  |  |  | 57,400 |
Exercises: |  |  |  |  |  |  |  |
Stock options |  |  | 125 |  |  |  | - |
Forfeitures: |  |  |  |  |  |  |  |
Stock options |  |  | 73,156 |  |  |  | 33,478 |
RSAs |  |  | - |  |  |  | 8,574 |
RSUs |  |  | 4,092 |  |  |  | 63,683 |
PSUs |  |  | 2,500 |  |  |  | 63,000 |
Expirations: |  |  |  |  |  |  |  |
Stock options |  |  | 2,667 |  |  |  | 363 |

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
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
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration