Loans (Past Due Financing Receivables) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Current	$ 994,707	$ 907,206
Total Past Due	10,361	11,688
Total Loan Receivables	1,005,068	918,894	$ 895,839
31 - 60 Days [Member]
Total Past Due	110	217
61 - 89 Days [Member]
Total Past Due	711	731
90 or Greater Days [Member]
Total Past Due	9,540	10,740
Commercial Equipment [Member]
Current	32,457	29,138
Total Past Due	728	793
Total Loan Receivables	33,185	29,931	26,804
Commercial Equipment [Member] | 31 - 60 Days [Member]
Total Past Due		152
Commercial Equipment [Member] | 61 - 89 Days [Member]
Total Past Due	34	293
Commercial Equipment [Member] | 90 or Greater Days [Member]
Total Past Due	694	348
Consumer Loans [Member]
Current	332	365
Total Past Due		1
Total Loan Receivables	332	366	396
Consumer Loans [Member] | 61 - 89 Days [Member]
Total Past Due		1
Commercial Loans [Member]
Current	56,096	65,747
Total Past Due	1,071	1,499
Total Loan Receivables	57,167	67,246	63,480
Commercial Loans [Member] | 31 - 60 Days [Member]
Total Past Due	41
Commercial Loans [Member] | 61 - 89 Days [Member]
Total Past Due		138
Commercial Loans [Member] | 90 or Greater Days [Member]
Total Past Due	1,030	1,361
Home Equity and Second Mortgage [Member]
Current	21,990	21,603
Total Past Due	114	113
Total Loan Receivables	22,104	21,716	21,068
Home Equity and Second Mortgage [Member] | 31 - 60 Days [Member]
Total Past Due	69	65
Home Equity and Second Mortgage [Member] | 61 - 89 Days [Member]
Total Past Due	45
Home Equity and Second Mortgage [Member] | 90 or Greater Days [Member]
Total Past Due		48
Construction and Land Development [Member]
Current	31,919	32,634
Total Past Due	3,641	3,555
Total Loan Receivables	35,560	36,189	39,159
Construction and Land Development [Member] | 90 or Greater Days [Member]
Total Past Due	3,641	3,555
Residential Rentals [Member]
Current	99,513	92,552
Total Past Due	689	605
Total Loan Receivables	100,202	93,157	84,668
Residential Rentals [Member] | 90 or Greater Days [Member]
Total Past Due	689	605
Residential First Mortgages [Member]
Current	146,880	129,154
Total Past Due	1,258	2,247
Total Loan Receivables	148,138	131,401	137,439
Residential First Mortgages [Member] | 61 - 89 Days [Member]
Total Past Due	188	299
Residential First Mortgages [Member] | 90 or Greater Days [Member]
Total Past Due	1,070	1,948
Commercial Real Estate [Member]
Current	605,520	536,013
Total Past Due	2,860	2,875
Total Loan Receivables	608,380	538,888	$ 522,825
Commercial Real Estate [Member] | 61 - 89 Days [Member]
Total Past Due	444
Commercial Real Estate [Member] | 90 or Greater Days [Member]
Total Past Due	$ 2,416	$ 2,875