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3. NET LOSS PER COMMON SHARE (Tables) | 9 Months Ended
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Dec. 31, 2021
NET LOSS PER COMMON SHARE |
Basic and diluted net loss per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended December 31, | ​ | Nine Months Ended December 31,
​ | ​ | 2021 | ​ | 2020 | ​ | 2021 | ​ | 2020
​ | ​ | (In thousands, except per share amounts) | ​ | (In thousands, except per share amounts)
Net loss |  | $ | (4,581) |  | $ | (5,216) |  | $ | (13,357) |  | $ | (16,523)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominators: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares—Basic | ​ |  | 24,406 | ​ | ​ | 23,716 | ​ | ​ | 24,244 | ​ | ​ | 23,592
Dilutive effect of employee stock options | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Dilutive effect of employee stock purchase plan options | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Weighted average shares—Dilutive | ​ |  | 24,406 | ​ |  | 23,716 | ​ |  | 24,244 | ​ |  | 23,592
Net loss per common share—Basic |  | $ | (0.19) |  | $ | (0.22) |  | $ | (0.55) | ​ | $ | (0.70)
Net loss per common share—Diluted |  | $ | (0.19) |  | $ | (0.22) |  | $ | (0.55) | ​ | $ | (0.70)
Anti-dilutive shares | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended December 31, | ​ | Nine Months Ended December 31, | ​
​ | ​ | 2021 | ​ | 2020 | ​ | 2021 | ​ | 2020 |
​ | ​ | (In thousands) | ​ | (In thousands) | ​
Shares underlying options and ESPP shares |  | 6,552 | ​ | 5,181 | ​ | 6,136 | ​ | 4,856 | ​

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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