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Note 2 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Mar. 31, 2024
Notes Tables |
Property Plant and Equipment Useful Life [Table Text Block] |
Asset Classification |  | Estimated Useful Life in Years |
Machinery and equipment |  | 3-10 |
Furniture and fixtures |  | 3-5 |
Leasehold improvements |  | Shorter of the estimated useful life or the remaining lease term |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Fiscal year ended March 31, |
|  | 2024 |  |  | 2023 |
Numerator: |  |  |  |  |  |  |  |
Net loss |  | $ | (11,111 | ) |  | $ | (35,041 | )
Denominator: |  |  |  |  |  |  |  |
Weighted-average shares of common stock outstanding |  |  | 31,277 |  |  |  | 29,038 |
Weighted-average shares subject to repurchase |  |  | (1,452 | ) |  |  | (1,190 | )
Shares used in per-share calculation ― basic |  |  | 29,825 |  |  |  | 27,848 |
Shares used in per-share calculation ― diluted |  |  | 29,825 |  |  |  | 27,848 |
Net loss per share ― basic |  | $ | (0.37 | ) |  | $ | (1.26 | )
Net loss per share ― diluted |  | $ | (0.37 | ) |  | $ | (1.26 | )

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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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