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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Mar. 31, 2023
Mar. 31, 2022
Summary Of Significant Accounting Policies [Line Items]            
Cash and cash equivalents $ 5,295,000 $ 20,196,000 $ 5,295,000 $ 20,196,000 $ 15,301,000 $ 28,675,000
Restricted cash 143,000 143,000 143,000 143,000 143,000 143,000
Accumulated deficit $ (336,624,000)   (336,624,000)   (324,998,000) (307,739,000)
Cash flow from operations     $ 11,982,000 7,675,000 $ 12,408,000 $ 8,453,000
Issuance of common stock 9,838,755   9,838,755   8,716,906 8,710,627
Dilutive effect $ 0 $ 0 $ 0 $ 0 $ 0 $ 0
Common stock equivalents excluded from computing diluted net loss per share     800,000 1,500,000 1,600,000 1,200,000
At The Market Facility [Member]            
Summary Of Significant Accounting Policies [Line Items]            
Issuance of common stock 934,621   934,621   0