XML 89 R74.htm IDEA: XBRL DOCUMENT v3.20.4
Loans (Impaired Loans) - Additional Information (Detail)
$ in Thousands
1 Months Ended 12 Months Ended
May 31, 2020
Loan
Dec. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Loan
Dec. 31, 2020
USD ($)
Contract
Dec. 31, 2019
USD ($)
Contract
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Additional funds available to be advanced in connection with impaired loans   $ 750 $ 750 $ 750 $ 750  
Impaired loans classified as troubled debt restructured   $ 6,000 $ 6,000 6,000 6,000 $ 956
TDR loans, subsequently defaulted during the period     0     0
Maximum time for re-evaluation (in months)   12 months        
Re-evaluation period for real estate   2 years        
Unsecured consumer loans, credit card credits and overdraft lines of credit reach   90 days        
Delinquent period for charging down consumer loans   120 days        
Delinquent period for charging down commercial and agricultural credits   120 days        
Foreclosed residential real estate property   $ 71 $ 71 71 71 $ 214
Consumer Real Estate [Member]            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Number of contracts modified | Contract           1
Foreclosed residential real estate property   71 71 71 71 $ 50
Residential real estate properties foreclosure proceedings   $ 910 $ 910 $ 910 $ 910 $ 383
Principal Forgiveness [Member]            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Number of contracts modified       4 0 0
TDR impaired loans paid off | Loan 1          
Payment Changes from Monthly Payment to Principal and Interest at Maturity [Member]            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Number of contracts modified | Contract         2  
Payment Changes to Interest Only for Extended Maturity [Member]            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Number of contracts modified | Contract           4
Lowering of Payment to Match Extended Maturity [Member]            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Number of contracts modified | Contract           1