CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Interest and dividend income
Interest and fees on loans	$ 18,666	$ 18,483	$ 18,233
Interest on debt securities
Taxable	3,041	3,770	5,028
Tax exempt	2,210	2,231	2,491
Other interest and dividends	127	172	114
Total interest and dividend income	24,044	24,656	25,866
Interest expense
Deposits	3,165	4,364	5,790
Repurchase agreements	63	90	131
Federal Home Loan Bank of Boston advances	2,331	3,043	3,111
Total interest expense	5,559	7,497	9,032
Net interest income	18,485	17,159	16,834
Provision for loan losses	1,440	1,000	985
Net interest and dividend income after provision for loan losses	17,045	16,159	15,849
Non-interest income
Gains on securities, net	11	16	473
Trust and wealth advisory	2,548	2,102	1,978
Service charges and fees	2,090	2,006	1,725
Gains on sales of mortgage loans, net	687	816	488
Mortgage servicing, net	65	97	80
Other	255	270	459
Total non-interest income, excluding other-than-temporary impairment losses	5,656	5,307	5,203
Other-than-temporary impairment losses on securities			(2,302)
Portion of loss recognized in other comprehensive income (before tax)			1,174
Net other-than-temporary impairment losses recognized in earnings			(1,128)
Total non-interest income	5,656	5,307	4,075
Non-interest expense
Salaries	6,970	6,816	6,623
Employee benefits	2,493	2,253	2,527
Premises and equipment	2,330	2,099	1,969
Data processing	1,410	1,452	1,473
Professional fees	1,099	1,364	1,493
Collections and OREO	590	191	45
FDIC insurance	596	735	914
Marketing and community support	343	319	341
Amortization of intangibles	222	222	164
Other	1,586	1,662	1,957
Total non-interest expense	17,639	17,113	17,506
Income before income taxes	5,062	4,353	2,418
Income tax provision (benefit)	950	693	(49)
Net income	4,112	3,660	2,467
Net income available to common shareholders	$ 3,588	$ 3,198	$ 2,102
Basic and diluted earnings per share	$ 2.12	$ 1.9	$ 1.25
Common dividends per share	$ 1.12	$ 1.12	$ 0.84