v3.26.1
Series B and Series B-2 Preferred Stock and Treasury Stock (Details) - USD ($)
 14 Months Ended
Apr. 30, 2026
Oct. 31, 2025
Mar. 31, 2025
Dec. 31, 2014
Apr. 30, 2014
Dec. 31, 1997
Temporary Equity [Line Items]            
Authorized amount of common stock purchases approved under share repurchase program (in shares)     $ 30,000,000      
Shares repurchased under program (in shares) 0          
Series B Preferred Stock            
Temporary Equity [Line Items]            
Preferred stock, shares issued (in shares) 14,790 14,790     14,790 30,000
Price per share of shares issued (in dollars per shares)           $ 8.75
Preferred stock, par value (in dollars per share) $ 100.00 $ 100.00       $ 100.00
Preferred stock, dividend rate 8.75% 8.75%       8.75%
Preferred stock, shares outstanding (in shares) 14,790 14,790     14,790  
Dividend arrearages (in dollars per share) $ 2.19          
Aggregate allocation of dividends arrearages $ 32,000          
Series B-2 Preferred Stock            
Temporary Equity [Line Items]            
Preferred stock, shares issued (in shares) 9,300 9,300   10,000    
Preferred stock, par value (in dollars per share) $ 100.00 $ 100.00   $ 100.00    
Preferred stock, dividend rate 4.00% 4.00%   4.00%    
Preferred stock, liquidation preference per share (in dollars per share) $ 1,000 $ 1,000   $ 1,000    
Preferred stock, shares outstanding (in shares) 9,300 9,300        
Dividend arrearages (in dollars per share) $ 10.00          
Aggregate allocation of dividends arrearages $ 93,000