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Note 5 - Computation of Net Loss Per Common Share (Tables) | 6 Months Ended
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Sep. 30, 2022
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Six Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (9,881 | ) |  | $ | (4,434 | ) |  | $ | (18,590 | ) |  | $ | (9,837 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares of common stock outstanding |  |  | 28,775 |  |  |  | 28,360 |  |  |  | 28,648 |  |  |  | 28,141 |
Weighted-average shares subject to repurchase |  |  | (908 | ) |  |  | (1,108 | ) |  |  | (934 | ) |  |  | (1,101 | )
Shares used in per-share calculation ― basic |  |  | 27,867 |  |  |  | 27,252 |  |  |  | 27,714 |  |  |  | 27,040 |
Shares used in per-share calculation ― diluted |  |  | 27,867 |  |  |  | 27,252 |  |  |  | 27,714 |  |  |  | 27,040 |
Net loss per share ― basic |  | $ | (0.35 | ) |  | $ | (0.16 | ) |  | $ | (0.67 | ) |  | $ | (0.36 | )
Net loss per share ― diluted |  | $ | (0.35 | ) |  | $ | (0.16 | ) |  | $ | (0.67 | ) |  | $ | (0.36 | )

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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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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