Fair Value of Assets and Liabilities - Schedule of Losses Resulting from Nonrecurring Fair Value Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loss from nonrecurring measurements	$ (500)	$ 238	$ 46	$ 12
Loans measured for impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loss from nonrecurring measurements	(600)	108	(220)	(118)
Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loss from nonrecurring measurements	$ 100	$ 130	$ 266	$ 130