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Fair Value Measurements - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Valuation allowance $ 10,848,000 $ 9,600,000 $ 12,915,000 $ 9,130,000
Fair Value        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Valuation allowance 0      
Write-offs 0 0    
Loans receivable 1,113,849,000 1,015,052,000    
Fair Value | Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Valuation allowance   30,000    
Carrying Value        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Loans receivable 1,245,456,000 1,029,511,000    
Impaired loans | Fair Value | Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Loans receivable   262,000    
Impaired loans | Carrying Value | Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Loans receivable $ 0 $ 292,000