Loans (Loans Maturing in Portfolio Based on Contractual Terms) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Contract receivable, due whithin one year	$ 255,940
Contract receivable, due after one year through five years	265,167
Contract receivable, due in more than five years	351,022
Commercial Equipment [Member]
Contract receivable, due whithin one year	17,497
Contract receivable, due after one year through five years	5,826
Contract receivable, due in more than five years	2,829
Consumer Loans [Member]
Contract receivable, due whithin one year	303
Contract receivable, due after one year through five years	275
Contract receivable, due in more than five years	35
Commercial Loans [Member]
Contract receivable, due whithin one year	73,625
Home Equity and Second Mortgage [Member]
Contract receivable, due whithin one year	2,238
Contract receivable, due after one year through five years	6,926
Contract receivable, due in more than five years	12,288
Construction and Land Development [Member]
Contract receivable, due whithin one year	26,867
Contract receivable, due after one year through five years	9,503
Residential Mortgage [Member]
Contract receivable, due whithin one year	21,110
Contract receivable, due after one year through five years	58,320
Contract receivable, due in more than five years	73,407
Commercial Real Estate [Member]
Contract receivable, due whithin one year	114,300
Contract receivable, due after one year through five years	184,317
Contract receivable, due in more than five years	$ 262,463