Loans (Past Due Financing Receivables) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Current	$ 828,480,000	$ 789,010,000
31-60 Days	477,000	3,332,000
61-89 Days	5,415,000	4,728,000
90 or greater days	11,886,000	11,170,000
Total Past Due	17,778,000	19,230,000
Total Loan Receivables	846,258,000	808,240,000	754,216,000
Commercial Equipment [Member]
Current	25,505,000	23,435,000
31-60 Days	111,000	26,000
61-89 Days	39,000	43,000
90 or greater days	221,000	234,000
Total Past Due	371,000	303,000
Total Loan Receivables	25,876,000	23,738,000	17,347,000
Consumer Loans [Member]
Current	733,000	830,000
31-60 Days		8,000
61-89 Days	3,000
Total Past Due	3,000	8,000
Total Loan Receivables	736,000	838,000	937,000
Commercial Loans [Member]
Current	75,548,000	88,812,000
31-60 Days		3,111,000
61-89 Days		318,000
90 or greater days	2,035,000	1,935,000
Total Past Due	2,035,000	5,364,000
Total Loan Receivables	77,583,000	94,176,000	84,993,000
Home Equity and Second Mortgage [Member]
Current	20,418,000	21,183,000
31-60 Days	360,000	121,000
61-89 Days	281,000	273,000
90 or greater days	166,000	115,000
Total Past Due	807,000	509,000
Total Loan Receivables	21,225,000	21,692,000	21,769,000
Construction and Land Development [Member]
Current	28,275,000	28,525,000
61-89 Days		508,000
90 or greater days	3,811,000	2,968,000
Total Past Due	3,811,000	3,476,000
Total Loan Receivables	32,086,000	32,001,000	29,120,000
Residential Mortgage [Member]
Current	155,674,000	157,043,000
31-60 Days	6,000	8,000
61-89 Days	613,000	413,000
90 or greater days	540,000	1,683,000
Total Past Due	1,159,000	2,104,000
Total Loan Receivables	156,833,000	159,147,000	165,434,000
Commercial Real Estate [Member]
Current	522,327,000	469,182,000
31-60 Days		58,000
61-89 Days	4,479,000	3,173,000
90 or greater days	5,113,000	4,235,000
Total Past Due	9,592,000	7,466,000
Total Loan Receivables	$ 531,919,000	$ 476,648,000	$ 434,616,000