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3. NET LOSS PER COMMON SHARE (Tables) | 6 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of basic and diluted net loss per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Six Months Ended September 30,
​ |  | 2025 | ​ | 2024 | ​ | 2025 | ​ | 2024
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | (In thousands, except per share amounts) | ​ | (In thousands, except per share amounts)
Net loss | ​ | $ | (3,185) |  | $ | (5,458) |  | ​ | (5,402) |  | $ | (4,380)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominators: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares—Basic | ​ |  | 29,630 | ​ | ​ | 25,467 | ​ | ​ | 28,306 | ​ | ​ | 25,421
Dilutive effect of employee stock options | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Dilutive effect of employee stock purchase plan options | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Weighted average shares—Dilutive | ​ |  | 29,630 | ​ |  | 25,467 | ​ |  | 28,306 | ​ |  | 25,421
Net loss per common share—Basic |  | $ | (0.11) |  | $ | (0.21) |  | $ | (0.19) | ​ | $ | (0.17)
Net loss per common share—Diluted |  | $ | (0.11) |  | $ | (0.21) |  | $ | (0.19) | ​ | $ | (0.17)
Schedule of anti-dilutive shares | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Six Months Ended September 30,
​ | ​ | 2025 | ​ | 2024 | ​ | 2025 | ​ | 2024
​ | ​ | (In thousands) | ​ | (In thousands)
Shares underlying options and ESPP shares |  | 7,073 | ​ | 7,956 | ​ | 6,960 | ​ | 7,927
​

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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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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