v3.19.1
Loans Receivable - Trouble Debt Restructuring (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
contract
Dec. 31, 2017
USD ($)
contract
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract 4 9
Performing $ 284 $ 3,811
Number of loans charged off | contract 3  
Charged off loan amount $ 291  
Acquired loans    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract 3 4
Performing $ 145 $ 151
Residential | Real estate:    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract 3 5
Performing $ 145 $ 254
Commercial    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract 1 3
Performing $ 139 $ 848
Commercial | Real estate:    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract   1
Performing   $ 2,709
Performing    
Financing Receivable, Modifications [Line Items]    
Performing $ 0 3,219
Number of loans paid off | contract 2  
Loans paid off, amount $ 3,200  
Performing | Acquired loans    
Financing Receivable, Modifications [Line Items]    
Performing 0 0
Performing | Residential | Real estate:    
Financing Receivable, Modifications [Line Items]    
Performing 0 0
Performing | Commercial    
Financing Receivable, Modifications [Line Items]    
Performing 0 510
Performing | Commercial | Real estate:    
Financing Receivable, Modifications [Line Items]    
Performing   2,709
Nonperforming    
Financing Receivable, Modifications [Line Items]    
Performing 284 592
Nonperforming | Acquired loans    
Financing Receivable, Modifications [Line Items]    
Performing 145 151
Nonperforming | Residential | Real estate:    
Financing Receivable, Modifications [Line Items]    
Performing 145 254
Nonperforming | Commercial    
Financing Receivable, Modifications [Line Items]    
Performing $ 139 338
Nonperforming | Commercial | Real estate:    
Financing Receivable, Modifications [Line Items]    
Performing   $ 0