Loans (Details 5) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Aging categories of performing loans and nonaccrual loans
Current	$ 467,702	$ 439,700
30-59 Days Past Due	1,869	2,770
60-89 Days Past Due	3,925	519
90 Days Past Due	183	329
Total Past Due	5,977	3,618
Non-Accrual	1,175	3,125
Total Loans	474,854	446,443
Commercial
Aging categories of performing loans and nonaccrual loans
Current	327,467	295,295
30-59 Days Past Due	1,664	767
60-89 Days Past Due	3,472	221
90 Days Past Due	142	275
Total Past Due	5,278	1,263
Non-Accrual	942	3,081
Total Loans	333,687	299,639
Residential Real Estate
Aging categories of performing loans and nonaccrual loans
Current	100,189	111,053
30-59 Days Past Due	75	1,772
60-89 Days Past Due	393	293
90 Days Past Due	29	51
Total Past Due	497	2,116
Non-Accrual	232	43
Total Loans	100,918	113,212
Home Equity
Aging categories of performing loans and nonaccrual loans
Current	21,519	16,772
30-59 Days Past Due		28
60-89 Days Past Due	28
90 Days Past Due
Total Past Due	28	28
Non-Accrual
Total Loans	21,547	16,800
Installment
Aging categories of performing loans and nonaccrual loans
Current	17,937	15,991
30-59 Days Past Due	119	179
60-89 Days Past Due	26
90 Days Past Due		3
Total Past Due	145	182
Non-Accrual	1	1
Total Loans	18,083	16,174
Credit Card
Aging categories of performing loans and nonaccrual loans
Current	590	589
30-59 Days Past Due	11	24
60-89 Days Past Due	6	5
90 Days Past Due	12
Total Past Due	29	29
Non-Accrual
Total Loans	$ 619	$ 618