Annual report [Section 13 and 15(d), not S-K Item 405]

Debt - Additional Information (Detail)

v3.26.1
Debt - Additional Information (Detail)
12 Months Ended
Jun. 18, 2025
USD ($)
Jun. 18, 2024
USD ($)
Installment
Jul. 01, 2019
USD ($)
Jun. 24, 2013
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jun. 17, 2024
USD ($)
Debt Instrument [Line Items]                
Outstanding borrowings under credit facility         $ 4,023,000 $ 0    
City National Bank                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity       $ 15,000,000        
Accrued, unpaid interest         23,000 0    
Interest expense including amortization of deferred financing fees         $ 96,000 97,000 $ 369,000  
Delayed Draw Term Loan | City National Bank                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity     $ 25,500,000 $ 7,500,000        
Credit facility maturity date     Jul. 01, 2026   Jun. 24, 2025      
Credit facility, interest rate description         the higher of the prime rate plus a margin of 0.25 percentage points and 2.5% or (b) the SOFR rate plus 2.80 percentage points, at the borrowers’ option      
Credit facility draw date     Jul. 01, 2024          
Variable rate notes issued for redemption of partners' interests, spread       2.80%        
Debt instrument variable interest rate basis         SOFR      
Outstanding borrowings under credit facility         $ 4,000,000 0    
Delayed Draw Term Loan | City National Bank | Maximum                
Debt Instrument [Line Items]                
Variable rate notes issued for redemption of partners' interests, spread       0.25%        
Debt instrument variable interest rate basis         prime rate      
Delayed Draw Term Loan | City National Bank | Minimum                
Debt Instrument [Line Items]                
Credit facility, fixed interest rate       2.50%        
Delayed Draw Term Loan | Amendment and Restatement Agreement | City National Bank                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity   $ 10,000,000           $ 25,500,000
Credit facility maturity date Jun. 18, 2028 Jun. 18, 2027            
Credit facility maturity extension period 1 year              
Credit facility extended maturity date Jun. 18, 2030              
Credit facility draw date Jun. 18, 2026 Jun. 18, 2025            
Annual yearly payments $ 33,333.33              
Credit facility, number of installments | Installment   3            
Periodic payment, principal   $ 33,333.33            
Upfront fee   15,000            
Additional commitment fee amount   $ 100,000            
Percentage of commitment fee   0.75%            
Line Of Credit Facility Percentage Of Commitment Revised To Equal Of principal amount of term loans outstanding   5.00%            
Borrowings Under Revolving Credit Agreement | City National Bank                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity     $ 10,000,000 $ 7,500,000        
Credit facility maturity date     Jun. 18, 2024   Jun. 21, 2019      
Debt covenant, restriction on change in control       30.00%        
Outstanding borrowings under credit facility         $ 0 $ 0    
Borrowings Under Revolving Credit Agreement | Amendment and Restatement Agreement | City National Bank                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity   $ 10,000,000            
Credit facility maturity date Jun. 18, 2026 Jun. 18, 2025