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Summary of Significant Accounting Policies - Summary of Changes in Liability For Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]      
Balance at beginning of the year $ 626 $ 749  
Liabilities settled (79) (109)  
Revision of estimate (6) (17) $ 85
Accretion expense 2 3  
Balance at end of the year 543 626 $ 749
Asset Retirement Obligation [Abstract]      
Less amount classified as current - included in accounts payable and accrued expenses 30 85  
Noncurrent liabilities - included in other liabilities $ 513 $ 541