Short-Term Borrowings and Long-Term Debt (Borrowings) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Short-term borrowings:
Retail customer repurchase agreements	$ 7,219	$ 9,076	$ 6,917
Federal Home Loan Bank advances	28,500	0
Total short-term borrowings	35,719	9,076
Long-term debt:
Federal Home Loan Bank advances	65,181	68,234
Long-term notes payable	5,415	5,338
Junior subordinated debt	56,702	56,702
Total long-term debt	$ 127,298	$ 130,274
Federal Home Loan Bank advances [Member]
Short-term borrowings:
Short-term borrowings, Rate	0.49%	0.00%
Long-term debt:
Long-term debt, Rate	1.79%	1.68%
Long-term notes payable [Member]
Long-term debt:
Long-term debt, Rate	1.43%	1.43%
Junior subordinated debt [Member]
Long-term debt:
Long-term debt, Rate	1.92%	1.78%
Retail customer repurchase agreements [Member]
Short-term borrowings:
Short-term borrowings, Rate	0.21%	0.21%	0.21%