SECURITIES - Composition of securities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Available-for-sale
Total securities available-for-sale	$ 99,816	$ 126,287
Amortized cost (1)
Available-for-sale
U.S. Treasury notes	2,496	2,496
U.S. Government Agency notes	2,509	7,515
Municipal bonds	43,850	45,395
Mortgage backed securities, U.S. Government Agencies	35,720	47,465
Collateralized mortgage obligations, U.S. Government Agencies	3,807	5,131
Collateralized mortgage obligations, Non-agency	8,492	11,081
SBA bonds	2,260	2,781
Preferred Stock	20	20
Total securities available-for-sale	99,154	121,884
Non-marketable securities
Federal Home Loan Bank of Boston stock	5,340	5,747
Gross un-realized gains
Available-for-sale
U.S. Treasury notes	174	237
U.S. Government Agency notes	110	211
Municipal bonds	842	2,138
Mortgage backed securities, U.S. Government Agencies	654	1,284
Collateralized mortgage obligations, U.S. Government Agencies	41	66
Collateralized mortgage obligations, Non-agency	423	494
SBA bonds	101	82
Preferred Stock	516	147
Total securities available-for-sale	2,861	4,659
Non-marketable securities
Federal Home Loan Bank of Boston stock
Gross un-realized losses
Available-for-sale
U.S. Treasury notes
U.S. Government Agency notes
Municipal bonds	(2,119)	(168)
Mortgage backed securities, U.S. Government Agencies	(60)	(20)
Collateralized mortgage obligations, U.S. Government Agencies
Collateralized mortgage obligations, Non-agency	(20)	(68)
SBA bonds
Preferred Stock
Total securities available-for-sale	(2,199)	(256)
Non-marketable securities
Federal Home Loan Bank of Boston stock
Fair value
Available-for-sale
U.S. Treasury notes	2,670	2,733
U.S. Government Agency notes	2,619	7,726
Municipal bonds	42,573	47,365
Mortgage backed securities, U.S. Government Agencies	36,314	48,729
Collateralized mortgage obligations, U.S. Government Agencies	3,848	5,197
Collateralized mortgage obligations, Non-agency	8,895	11,507
SBA bonds	2,361	2,863
Preferred Stock	536	167
Total securities available-for-sale	99,816	126,287
Non-marketable securities
Federal Home Loan Bank of Boston stock	$ 5,340	$ 5,747

Collateralized Mortgage Obligation.

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- Definition

SBA Bonds.

+ References

No definition available.

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- Definition

U.S. Treasury Notes.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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-Section 50

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-Subparagraph (aa)

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-Publisher FASB

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-Topic 320

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- Definition

Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 50

-Paragraph 1

-Subparagraph (b)

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- Definition

Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

+ References

No definition available.

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- Definition

The fair value as of the balance sheet date of firm holdings in debt obligations issued by the US government including short-term Treasury bills, medium-term Treasury notes, and long-term Treasury bonds, as well as debt issued by agencies. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 940

-SubTopic 320

-Section 45

-Paragraph 2

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- Definition

Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Mortgage-Backed Securities

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- Definition

Bonds or similar securities issued by state, city, or local governments or the agencies operated by state, city, or local governments which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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- Definition

Fair value of investments in trading equity securities and other forms of trading securities that provide ownership interests.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

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-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.4)

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-Glossary Trading Securities

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

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-Subparagraph (SX 210.7-03.(a),1(b))

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