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Note 10 - Net Loss Per Share of Common Stock (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Nine months ended September 30, |  |  | Three months ended September 30, |
|  | 2021 (unaudited) |  |  | 2020 (unaudited) |  |  | 2021 (unaudited) |  |  | 2020 (unaudited) |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (3,482 | ) |  | $ | (3,014 | ) |  | $ | (167 | ) |  | $ | (739 | )
Denominator (in thousands): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted-average common stock outstanding |  |  | 22,766 |  |  |  | 22,059 |  |  |  | 22,925 |  |  |  | 22,163 |
Effect of stock -based awards |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Diluted weighted average common stock outstanding |  |  | 22,766 |  |  |  | 22,059 |  |  |  | 22,925 |  |  |  | 22,163 |
Basic net loss per share |  | $ | (0.15 | ) |  | $ | (0.14 | ) |  | $ | (0.01 | ) |  | $ | (0.03 | )
Diluted net loss per share |  | $ | (0.15 | ) |  | $ | (0.14 | ) |  | $ | (0.01 | ) |  | $ | (0.03 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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