v3.7.0.1
Allowance for Loan Losses - Weighted Average Annualized Balance of Recorded Investment and Interest Income on Impaired Loans (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Financing Receivable Modifications [Line Items]    
Average Recorded Investment $ 11,154 $ 5,899
Interest Income after Impairment 32 51
Residential Properties    
Financing Receivable Modifications [Line Items]    
Average Recorded Investment 6,041 1,970
Interest Income after Impairment 20 14
Commercial Real Estate    
Financing Receivable Modifications [Line Items]    
Average Recorded Investment 2,130 2,252
Interest Income after Impairment 11 17
Commercial and Industrial Loans    
Financing Receivable Modifications [Line Items]    
Average Recorded Investment 2,983 1,673
Interest Income after Impairment $ 1 20
Consumer Loans    
Financing Receivable Modifications [Line Items]    
Average Recorded Investment   $ 4