Loans and Allowance for Loan Losses - Summary of Loans Modified as Troubled Debt Restructurings for Payment Default (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Troubled Debt Restructurings [Line Items]
Defaulted	$ 0
Charge offs and specific reserves	39,000	$ 131,000
Residential Real Estate
Troubled Debt Restructurings [Line Items]
Defaulted		145,000
Charge offs and specific reserves		45,000
Residential Real Estate | 1-to-4 Family Mortgage
Troubled Debt Restructurings [Line Items]
Defaulted		145,000
Charge offs and specific reserves	$ 39,000	$ 45,000