v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
12 Months Ended
Jul. 18, 2021
Mar. 31, 2026
USD ($)
segment
Mar. 31, 2025
USD ($)
Mar. 31, 2024
Accounting Policies [Abstract]        
Cash held in money market funds   $ 11,800,000 $ 28,100,000  
FDIC uninsured amount   $ 27,500,000 $ 43,100,000  
Number of operating segments | segment   1    
Number of reportable segments | segment   1    
Remaining lease term (in years)   9 years 6 months    
Concentration Risk [Line Items]        
Non-cash PIK interest income percent   6.20% 6.20% 5.70%
Interest or penalties expense   $ 0 $ 0  
Restricted Stock | 2010 Plan        
Concentration Risk [Line Items]        
Right to grant period (in years) 10 years      
Investments on Non-accrual Status | Percentage of Total Portfolio at Fair Value | Credit risk        
Concentration Risk [Line Items]        
Percent of total investment portfolio's fair value   1.10% 1.70%  
Investments on Non-accrual Status | Percentage of Total Portfolio at Cost | Credit risk        
Concentration Risk [Line Items]        
Percent of total investment portfolio's fair value   2.40% 3.50%