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Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Treasury Stock [Member] | Accumulated Deficit [Member] | Accumulated Other Comprehensive Income [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Mar. 31, 2024 | $ 3,601 | $ 1 | $ 343,270 | $ (1) | $ (339,669) | $ 0
Beginning balance, Shares at Mar. 31, 2024 |  | 840,000 |  | 0 |  |
Issuance of common stock from exercise of pre-funded warrants | 1 | $ 0 | 1 | $ 0 | 0 | 0
Issuance of common stock from exercise of pre-funded warrants, Shares |  | 115,000 |  | 0 |  |
Issuance of common stock from public offering, net | 6,248 | $ 0 | 6,248 | $ 0 | 0 | 0
Issuance of common stock from public offering, Shares |  | 243,000 |  | 0 |  |
Stock-based compensation expense | 156 | $ 0 | 156 | $ 0 | 0 | 0
Stock-based compensation expense, Shares |  | 0 |  | 0 |  |
Net loss | (3,344) | $ 0 | 0 | $ 0 | (3,344) | 0
Ending balance at Jun. 30, 2024 | 6,662 | $ 1 | 349,675 | $ (1) | (343,013) | 0
Ending balance, Shares at Jun. 30, 2024 |  | 1,198,000 |  | 0 |  |
Beginning balance at Mar. 31, 2024 | 3,601 | $ 1 | 343,270 | $ (1) | (339,669) | 0
Beginning balance, Shares at Mar. 31, 2024 |  | 840,000 |  | 0 |  |
Net loss | (5,893) |  |  |  |  |
Ending balance at Sep. 30, 2024 | 3,680 | $ 1 | 349,241 | $ (1) | (345,562) | 1
Ending balance, Shares at Sep. 30, 2024 |  | 1,281,000 |  | 0 |  |
Beginning balance at Jun. 30, 2024 | 6,662 | $ 1 | 349,675 | $ (1) | (343,013) | 0
Beginning balance, Shares at Jun. 30, 2024 |  | 1,198,000 |  | 0 |  |
Issuance of common stock from exercise of pre-funded warrants | 1 | $ 0 | 1 | $ 0 | 0 | 0
Issuance of common stock from exercise of pre-funded warrants, Shares |  | 83,000 |  | 0 |  |
Stock-based compensation expense | 155 | $ 0 | 155 | $ 0 | 0 | 0
Stock-based compensation expense, Shares |  | 0 |  | 0 |  |
Financing Fees | (590) | $ 0 | (590) | $ 0 | 0 | 0
Financing Fees, shares |  | 0 |  | 0 |  |
Net loss | (2,549) | $ 0 | 0 | $ 0 | (2,549) | 0
Unrealized gain on available-for-sale debt securities | 1 | $ 0 | 0 | $ 0 | 0 | 1
Unrealized gain on available-for-sale debt securities, Shares |  | 0 |  | 0 |  |
Ending balance at Sep. 30, 2024 | 3,680 | $ 1 | 349,241 | $ (1) | (345,562) | 1
Ending balance, Shares at Sep. 30, 2024 |  | 1,281,000 |  | 0 |  |
Beginning balance at Mar. 31, 2025 | 10,492 | $ 2 | 352,648 | $ (1) | (342,157) | 0
Beginning balance, Shares at Mar. 31, 2025 |  | 1,898,000 |  | 0 |  |
Retirement of treasury stock | 0 |  | (1) | $ 1 | 0 | 0
Retirement of treasury stock, shares |  |  |  | 0 |  |
Issuance of common stock from public offering, net | 1,811 | $ 1 | 1,810 | $ 0 | 0 | 0
Issuance of common stock from public offering, Shares |  | 702,000 |  | 0 |  |
Stock-based compensation expense | 78 | $ 0 | 78 | $ 0 | 0 | 0
Stock-based compensation expense, Shares |  | 0 |  | 0 |  |
Net loss | (2,843) | $ 0 | 0 | $ 0 | (2,843) | 0
Ending balance at Jun. 30, 2025 | 9,538 | $ 3 | 354,535 | $ (0) | (345,000) | 0
Ending balance, Shares at Jun. 30, 2025 |  | 2,600,000 |  | 0 |  |
Beginning balance at Mar. 31, 2025 | 10,492 | $ 2 | 352,648 | $ (1) | (342,157) | 0
Beginning balance, Shares at Mar. 31, 2025 |  | 1,898,000 |  | 0 |  |
Net loss | (5,388) |  |  |  |  |
Ending balance at Sep. 30, 2025 | 7,065 | $ 3 | 354,607 | $ 0 | (347,545) | 0
Ending balance, Shares at Sep. 30, 2025 |  | 2,608,000 |  | 0 |  |
Beginning balance at Jun. 30, 2025 | 9,538 | $ 3 | 354,535 | $ (0) | (345,000) | 0
Beginning balance, Shares at Jun. 30, 2025 |  | 2,600,000 |  | 0 |  |
Issuance of common stock under employee and director stock option, RSU, and purchase plans | 0 | $ 0 | 0 | $ 0 | 0 | 0
Issuance of common stock under employee and director stock option, RSU, and purchase plans, Shares |  | 8,000 |  | 0 |  |
Stock-based compensation expense | 72 | $ 0 | 72 | $ 0 | 0 | 0
Stock-based compensation expense, Shares |  | 0 |  | 0 |  |
Net loss | (2,545) | $ 0 | 0 | $ 0 | (2,545) | 0
Ending balance at Sep. 30, 2025 | $ 7,065 | $ 3 | $ 354,607 | $ 0 | $ (347,545) | $ 0
Ending balance, Shares at Sep. 30, 2025 |  | 2,608,000 |  | 0 |  |

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