XML 74 R61.htm IDEA: XBRL DOCUMENT v3.21.1
Loans - Summary of Nonperforming Loans (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Financing Receivable, Modifications [Line Items]    
Nonaccrual loans, other than troubled debt restructurings $ 1,068 $ 1,416
Total nonperforming loans (NPLs) 1,287 2,013
Non Accruing Loan [Member]    
Financing Receivable, Modifications [Line Items]    
Troubled debt restructurings 219 597
Accruing Loans [Member]    
Financing Receivable, Modifications [Line Items]    
Troubled debt restructurings $ 432 $ 446