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Significant Accounting Policies - Additional Information (Details)
1 Months Ended 6 Months Ended
Oct. 30, 2018
Nov. 30, 2018
Sep. 30, 2022
USD ($)
Contract
Mar. 31, 2022
USD ($)
Contract
Significant Accounting Policies [Line Items]        
Cash equivalents     $ 60,281,000 $ 30,033,000
Number of derivative contracts held | Contract     0 0
Investment company annual ordinary income percentage     98.00%  
Investment company capital gain percentage     98.20%  
Investment company, pay exercise tax equal to percentage of amount of annual income and capital gains exceed distribution from taxable income     4.00%  
Uncertain tax positions     $ 0  
Interest and penalties accrued     $ 0  
Reverse stock split, conversion ratio 0.03 3    
Reverse stock split, description   The Company’s Board of Directors approved a one-for-three reverse stock split of the Company’s common stock on October 30, 2018, which was effective as of close of business as of November 30, 2018 (the “Reverse Stock Split”).    
Maximum        
Significant Accounting Policies [Line Items]        
Investments, fair value       $ 1,000,000
Investment company taxable income percentage     90.00%  
Minimum        
Significant Accounting Policies [Line Items]        
Investment company annual ordinary income percentage     98.00%