v3.21.2

Note 5 - Stockholders' Equity (Deficit) (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
|  | Number of shares |  |  | Weighted average grant date fair value per share |
Unvested as of December 31, 2020 |  |  | 515,352 |  |  | $ | 6.12 |
Granted |  |  | 1,037,334 |  |  |  | 11.70 |
Vested |  |  | (657,352 | ) |  |  | 9.70 |
Forfeited |  |  | (91,974 | ) |  |  | 7.53 |
Unvested as of September 30, 2021 |  |  | 803,360 |  |  | $ | 10.24 |

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- 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
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