FAIR VALUE MEASUREMENTS - Carrying value and estimated fair values of financial instruments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Carrying value
Financial Assets
Cash and due from banks	$ 12,711	$ 43,574
Interest-bearing time deposits with other banks	738
Securities available-for-sale	94,491	126,287
Federal Home Loan Bank stock	5,340	5,747
Loans held-for-sale	173	1,879
Loans receivable, net	438,178	388,758
Accrued interest receivable	1,760	1,818
Financial Liabilities
Demand (non-interest-bearing)	84,677	98,850
Demand (interest-bearing)	81,932	65,991
Money market	120,550	128,501
Savings and other	107,171	103,985
Certificates of deposit	83,039	93,888
Deposits	477,369	491,215
FHLBB advances	30,411	31,980
Repurchase agreements	2,554	1,784
Capital lease liability	425
Accrued interest payable	140	196
Estimated fair value
Financial Assets
Cash and due from banks	12,711	43,574
Interest-bearing time deposits with other banks	738
Securities available-for-sale	94,491	126,287
Federal Home Loan Bank stock	5,340	5,747
Loans held-for-sale	175	1,893
Loans receivable, net	430,645	389,292
Accrued interest receivable	1,760	1,818
Financial Liabilities
Demand (non-interest-bearing)	84,677	98,850
Demand (interest-bearing)	81,932	65,991
Money market	120,550	128,501
Savings and other	107,171	103,985
Certificates of deposit	83,520	94,894
Deposits	477,850	492,221
FHLBB advances	33,034	35,363
Repurchase agreements	2,554	1,784
Capital lease liability	425
Accrued interest payable	140	196
Fair Value Measurements Using - Level 1
Financial Assets
Cash and due from banks	12,711	43,574
Interest-bearing time deposits with other banks
Securities available-for-sale	797	167
Federal Home Loan Bank stock
Loans held-for-sale
Loans receivable, net
Accrued interest receivable
Financial Liabilities
Demand (non-interest-bearing)
Demand (interest-bearing)
Money market
Savings and other
Certificates of deposit
Deposits
FHLBB advances
Repurchase agreements
Capital lease liability	425
Accrued interest payable
Fair Value Measurements Using - Level 2
Financial Assets
Cash and due from banks
Interest-bearing time deposits with other banks
Securities available-for-sale	93,694	126,120
Federal Home Loan Bank stock	5,340	5,474
Loans held-for-sale
Loans receivable, net
Accrued interest receivable
Financial Liabilities
Demand (non-interest-bearing)
Demand (interest-bearing)
Money market
Savings and other
Certificates of deposit
Deposits
FHLBB advances
Repurchase agreements
Capital lease liability
Accrued interest payable
Fair Value Measurements Using - Level 3
Financial Assets
Cash and due from banks
Interest-bearing time deposits with other banks	738
Securities available-for-sale
Federal Home Loan Bank stock
Loans held-for-sale	175	1,893
Loans receivable, net	430,645	389,292
Accrued interest receivable	1,760	1,818
Financial Liabilities
Demand (non-interest-bearing)	84,677	98,850
Demand (interest-bearing)	81,932	65,991
Money market	120,550	128,501
Savings and other	107,171	103,985
Certificates of deposit	83,520	94,894
Deposits	477,850	492,221
FHLBB advances	33,034	35,363
Repurchase agreements	2,554	1,784
Capital lease liability
Accrued interest payable	$ 140	$ 196

Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

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Amount of obligations incurred and payable, pertaining to costs that are statutory in nature, incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include, but not limited to, taxes, interest, rent and utilities. Also includes the aggregate carrying amount of liabilities not separately disclosed.

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Fair value of Federal Home Loan Bank (FHLBank) advances carried under the fair value option.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of capital lease obligation, assumed at the acquisition date.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

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Amount of interest-bearing domestic certificate of deposit liabilities.

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Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

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Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Amount of money in noninterest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

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An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.

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