Short-Term Borrowings and Long-Term Debt (Retail Repurchase Agreements and Federal Funds Purchased) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Short-term Debt [Line Items]
Short-term borrowings	$ 35,719,000	$ 9,076,000
Balance at December 31	7,219,000	9,076,000	$ 6,917,000
Retail repurchase agreements [Member]
Short-term Debt [Line Items]
Average balance during the year	10,033,000	7,713,000	9,852,000
Maximum month end balance	$ 16,753,000	$ 12,217,000	$ 13,064,000
Weighted average interest rate, At December 31	0.21%	0.21%	0.21%
Weighted average interest rate, During the year	0.22%	0.21%	0.21%
Federal Reserve Bank Lines of Credit [Member]
Short-term Debt [Line Items]
Short-term borrowings		$ 0