v3.25.2
Capital Stock - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Oct. 22, 2024
Sep. 20, 2024
Jul. 31, 2025
Jul. 31, 2024
Apr. 30, 2025
Class of Stock [Line Items]          
Common stock, authorized (in shares)     50,000,000   50,000,000
Common stock, par value (in dollars per share)   $ 0.01 $ 0.01   $ 0.01
Preferred stock, authorized (in shares)     1,000,000   1,000,000
Preferred shares, par value (in dollars per share)     $ 0.01   $ 0.01
Preferred stock, issued (in shares)     0   0
Issuance of common stock     $ 69 $ 76  
Common shares, outstanding (in shares)     8,277,613   8,263,280
Public Offering          
Class of Stock [Line Items]          
Issuance of common stock (in shares)   1,700,000      
Shares issued (in dollars per share)   $ 43.00      
Issuance of common stock   $ 73,800      
Over-Allotment Option          
Class of Stock [Line Items]          
Shares issued (in dollars per share) $ 43.00        
Expiration period (in days)   30 days      
Grant of option shares (in shares)   255,000      
Sale of common stock (in shares) 138,272        
Proceeds from sale of Option Shares $ 5,600        
Subsidiaries          
Class of Stock [Line Items]          
Preferred shares, par value (in dollars per share)     $ 1.00    
Preferred stock, issued (in shares)     500,000    
Preferred Stock, dividend rate (in percent)     8.00%    
Preferred stock right of shareholder (in shares)     400,000    
Preferred stock, right to shareholder value of redeemed stock     $ 400