Deposits Deposits and interest rates (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Noninterest-bearing Deposit Liabilities	$ 58,239	$ 67,202
Percentage of Noninterest bearing demand deposits to deposits	11.75%	12.62%
Weighted Average Rate Domestic Deposit, Demand	0.00%	0.00%
Deposits, Negotiable Order of Withdrawal (NOW)	25,927	28,325
Percentage of Interest-bearing Domestic Deposits to Deposits, Notice of Withdrawal	5.23%	5.32%
Weighted Average Rate Domestic Deposit, Notice of Withdrawal	0.16%	0.15%
Savings	98,066	101,079
Percentage of Interest-bearing Domestic Deposits to Deposits, Savings	19.78%	18.98%
Weighted Average Rate Domestic Deposit, Savings	0.26%	0.27%
Deposits, Money Market Deposits	113,259	109,404
Percentage of Interest-bearing Domestic Deposits to Deposits, Money Market	22.85%	20.54%
Weighted Average Rate Domestic Deposit, Money Market	0.67%	0.77%
Certificates of Deposit	198,089	224,445
Percentage of Interest-bearing Domestic Deposits to Deposits, Certificates of Deposit	39.96%	42.14%
Weighted Average Rate Domestic Deposit, Certificates of Deposit	1.16%	1.25%
Other Deposits	2,136	2,142
Percentage of other deposits to deposits	0.43%	0.40%
Percentage of Interest-bearing Domestic Deposits to Deposits, Retail	1.80%	1.67%
Deposits	$ 495,716	$ 532,597
Percent Total Deposits	100.00%	100.00%
Weighted Average Rate-Total Deposit	0.68%	0.75%

Other Deposits

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- Definition

Percentage of Noninterest bearing demand deposits to deposits

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- Definition

Percentage of other deposits to deposits

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- Definition

Percent Total Deposits

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- Definition

Weighted Average Rate-Other Deposit

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No definition available.

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- Definition

Weighted Average Rate-Total Deposit

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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 37, 38, 39

-IssueDate 2006-05-01

-Chapter 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.

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Amount of deposits in interest-bearing transaction accounts at banks or savings and loans, that are restricted in regard to ownership and can usually only be held by individuals, nonprofit entities and governments. Negotiable order of withdrawal accounts differ from money market demand accounts as they typically have higher reserve requirements and no limit on the number of checks that can be written.

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- Definition

Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 6

-IssueDate 2006-05-01

-Chapter 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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- Definition

Percentage of interest-bearing domestic certificates of deposit liabilities to total deposit liabilities.

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No definition available.

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- Definition

Percentage of interest-bearing domestic money market demand account deposit liabilities to total deposit liabilities.

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No definition available.

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- Definition

Percentage of interest-bearing domestic notice of withdrawal demand deposit liabilities to total deposit liabilities.

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- Definition

Percentage of interest-bearing domestic savings deposit liabilities to total deposit liabilities.

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- Definition

Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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- Definition

The weighted average interest rate for domestic certificates of deposit liabilities.

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- Definition

The weighted average interest rate for domestic demand deposit liabilities.

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- Definition

The weighted average interest rate for domestic money market demand account deposit liabilities.

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- Definition

The weighted average interest rate for domestic notice of withdrawal demand deposit liabilities.

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- Definition

The weighted average interest rate for domestic savings deposit liabilities.

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