Borrowed Funds (Details Textual) (USD $)			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Credit Facility One [Member]	Dec. 31, 2012 Credit Facility Two [Member]	Dec. 31, 2012 Fhlbb [Member]	Dec. 31, 2011 Fhlbb [Member]	Dec. 31, 2012 Correspondent Bank [Member]	Dec. 31, 2011 Correspondent Bank [Member]
Federal Home Loan Bank of Boston stock, at cost	$ 5,917,000	$ 6,252,000
Line of Credit Facility, Current Borrowing Capacity					2,540,000	2,540,000	3,500,000	3,500,000
Line of Credit Facility, Amount Outstanding					$ 0	$ 0
Line of Credit Facility, Expiration Date			Dec. 31, 2023	Dec. 31, 2028
Line of Credit Facility, Interest Rate During Period			0.27%	0.00%