Guarantees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Guarantees [Abstract]
Commitments to Extend Credit, Nominal Amount	$ 383,586	$ 278,623
Standby Letters of Credit, Nominal Amount	3,445	3,065
Commitments to Extend Credit, Fair Value	0	0
Fair Value Disclosure, Letters of Credit Outstanding, Amount	$ 30	$ 2