Loans (Details 6) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013 item	Dec. 31, 2012
Aging categories of performing loans and nonaccrual loans
Current	$ 518,143	$ 439,700
30-59 Days Past Due	1,544	2,770
60-89 Days Past Due	1,646	519
90 Days Past Due	543	329
Total Past Due	3,733	3,618
Non-Accrual	270	3,125
Total Loans	522,146	446,443
Number of rolling quarters utilized by Commercial, Mortgage and Consumer pools	12
Commercial
Aging categories of performing loans and nonaccrual loans
Current	349,581	295,295
30-59 Days Past Due	1,337	767
60-89 Days Past Due	994	221
90 Days Past Due	472	275
Total Past Due	2,803	1,263
Non-Accrual	240	3,081
Total Loans	352,624	299,639
Residential
Aging categories of performing loans and nonaccrual loans
Current	124,154	111,053
30-59 Days Past Due	36	1,772
60-89 Days Past Due	573	293
90 Days Past Due	28	51
Total Past Due	637	2,116
Non-Accrual	29	43
Total Loans	124,820	113,212
Home Equity
Aging categories of performing loans and nonaccrual loans
Current	25,433	16,772
30-59 Days Past Due	28	28
90 Days Past Due	28
Total Past Due	56	28
Total Loans	25,489	16,800
Installment
Aging categories of performing loans and nonaccrual loans
Current	18,391	15,991
30-59 Days Past Due	130	179
60-89 Days Past Due	79
90 Days Past Due	3	3
Total Past Due	212	182
Non-Accrual	1	1
Total Loans	18,604	16,174
Credit Card
Aging categories of performing loans and nonaccrual loans
Current	584	589
30-59 Days Past Due	13	24
60-89 Days Past Due		5
90 Days Past Due	12
Total Past Due	25	29
Total Loans	$ 609	$ 618