Other Real Estate Assets Owned (OREO) - Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Other real Estate Assets Owned Rollforward [Roll Forward]
Balance at the beginning of year, net	$ 3,345	$ 4,051	$ 4,051
Transfer of loans to other real estate owned	526	$ 0	287
Sales proceeds	0		(814)
Loss on disposition	0		(100)
Less valuation adjustments	(144)		(79)
Balance at the end of year, net	$ 3,727		$ 3,345