Securities - Temporarily Impaired Gross Unrealized Losses And Fair Value Of Held-To-Maturity Securities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Less Than 12 Months, Fair Value	$ 789
Less Than 12 Months, Gross Unrealized Losses	(2)
12 Months or More, Fair Value	0
12 Months or More, Gross Unrealized Losses	0
Total, Fair Value	789
Total, Gross Unrealized Losses	(2)
State And Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less Than 12 Months, Fair Value	789
Less Than 12 Months, Gross Unrealized Losses	(2)
12 Months or More, Fair Value	0
12 Months or More, Gross Unrealized Losses	0
Total, Fair Value	789
Total, Gross Unrealized Losses	$ (2)