Loan Sales and Servicing - Mortgage Servicing Rights (Details) - Mortgages - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of year	$ 2,240	$ 2,301
Originated mortgage servicing rights	230	232
Amortization	(341)	(293)
Balance at end of year	$ 2,129	$ 2,240