Pledged Assets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Securities and loans pledged to secure securities sold under agreements to repurchase, FHLBB advances and credit facilities available
Securities held-to-maturity (at cost)	$ 21,340	$ 41,165
Loans receivable	196,349	176,574
Total pledged assets	217,689	217,739
Repurchase agreements [Member]
Securities and loans pledged to secure securities sold under agreements to repurchase, FHLBB advances and credit facilities available
Securities held-to-maturity (at cost)	5,014	5,715
Total pledged assets	5,014	5,715
FHLBB borrowings [Member]
Securities and loans pledged to secure securities sold under agreements to repurchase, FHLBB advances and credit facilities available
Securities held-to-maturity (at cost)	16,326	25,098
Loans receivable	196,349	176,574
Total pledged assets	212,675	201,672
Federal Reserve Bank LOC [Member]
Securities and loans pledged to secure securities sold under agreements to repurchase, FHLBB advances and credit facilities available
Securities held-to-maturity (at cost)		10,352
Total pledged assets		$ 10,352

The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

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The sum of the carrying amounts, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and for which the transferees are not permitted to sell or re-pledge them to an unrelated party.

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- Definition

The carrying amount as of the date of the latest financial statement presented of mortgage-related securities classified as held to maturity which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

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