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v3.24.1.1.u2

Note 1 - Nature of the Business and Operations and Liquidity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 2 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2023 | Jan. 31, 2024
Retained Earnings (Accumulated Deficit) | $ (1,066,658) | $ (1,066,658) | $ (1,055,547) |
Cash, Cash Equivalents, and Marketable Securities | 90,500 | 90,500 |  |
Net Cash Provided by (Used in) Operating Activities |  | $ 2,138 | (22,485) |
Shelf Registration, Maximum Amount to be Sold |  |  |  | $ 250,000
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent |  | 5.00% |  |
Restructuring and Related Cost, Expected Cost | 1,000 | $ 1,000 |  |
Payments for Restructuring |  | 1,000 | $ 331 |
Restructuring and Related Cost, Expected Annual Savings | $ 5,000 | $ 5,000 |  |
Public Offering 2024 [Member] |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 6,210,000 |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ 11.25 | $ 11.25 |  |
Proceeds from Issuance of Common Stock | $ 65,200 |  |  |

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