Loans (Past Due Financing Receivables) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Current	$ 829,814,000	$ 789,010,000
31-60 Days	427,000	3,332,000
61-89 Days	5,243,000	4,728,000
90 or greater days	10,907,000	11,170,000
Total Past Due	16,577,000	19,230,000
Total Loan Receivables	846,391,000	808,240,000	768,841,000
Commercial Equipment [Member]
Current	25,597,000	23,435,000
31-60 Days	19,000	26,000
61-89 Days		43,000
90 or greater days	220,000	234,000
Total Past Due	239,000	303,000
Total Loan Receivables	25,836,000	23,738,000	21,085,000
Consumer Loans [Member]
Current	661,000	830,000
31-60 Days		8,000
Total Past Due		8,000
Total Loan Receivables	661,000	838,000	902,000
Commercial Loans [Member]
Current	62,009,000	88,812,000
31-60 Days	85,000	3,111,000
61-89 Days		318,000
90 or greater days	1,587,000	1,935,000
Total Past Due	1,672,000	5,364,000
Total Loan Receivables	63,681,000	94,176,000	86,504,000
Home Equity and Second Mortgage [Member]
Current	20,344,000	21,183,000
31-60 Days	323,000	121,000
61-89 Days	384,000	273,000
90 or greater days	279,000	115,000
Total Past Due	986,000	509,000
Total Loan Receivables	21,330,000	21,692,000	21,712,000
Construction and Land Development [Member]
Current	30,352,000	28,525,000
61-89 Days		508,000
90 or greater days	3,634,000	2,968,000
Total Past Due	3,634,000	3,476,000
Total Loan Receivables	33,986,000	32,001,000	31,114,000
Residential Mortgage [Member]
Current	154,199,000	157,043,000
31-60 Days		8,000
61-89 Days	428,000	413,000
90 or greater days	607,000	1,683,000
Total Past Due	1,035,000	2,104,000
Total Loan Receivables	155,234,000	159,147,000	161,862,000
Commercial Real Estate [Member]
Current	536,652,000	469,182,000
31-60 Days		58,000
61-89 Days	4,431,000	3,173,000
90 or greater days	4,580,000	4,235,000
Total Past Due	9,011,000	7,466,000
Total Loan Receivables	$ 545,663,000	$ 476,648,000	$ 445,662,000