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Note 4 - Computation of Net Loss Per Common Share (Tables) | 6 Months Ended
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Sep. 30, 2023
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Six Months Ended September 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (2,485 | ) |  | $ | (9,881 | ) |  | $ | (7,883 | ) |  | $ | (18,590 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares of common stock outstanding |  |  | 30,283 |  |  |  | 28,775 |  |  |  | 29,996 |  |  |  | 28,648 |
Weighted-average shares subject to repurchase |  |  | (1,455 | ) |  |  | (908 | ) |  |  | (1,451 | ) |  |  | (934 | )
Shares used in per-share calculation ― basic |  |  | 28,828 |  |  |  | 27,867 |  |  |  | 28,545 |  |  |  | 27,714 |
Shares used in per-share calculation ― diluted |  |  | 28,828 |  |  |  | 27,867 |  |  |  | 28,545 |  |  |  | 27,714 |
Net loss per share ― basic |  | $ | (0.09 | ) |  | $ | (0.35 | ) |  | $ | (0.28 | ) |  | $ | (0.67 | )
Net loss per share ― diluted |  | $ | (0.09 | ) |  | $ | (0.35 | ) |  | $ | (0.28 | ) |  | $ | (0.67 | )

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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