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Deposits Deposits liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Deposits [Abstract]
Percentage of Noninterest bearing demand deposits to deposits	9.32%	9.61%
Percentage of Interest-bearing Domestic Deposits to Deposits	5.46%	5.85%
Percentage of Interest-bearing Domestic Deposits to Deposits, Savings	15.70%	18.00%
Percentage of Interest-bearing Domestic Deposits to Deposits, Money Market	26.93%	28.18%
Percentage of Interest-bearing Domestic Deposits to Deposits, Certificates of Deposit	42.17%	37.92%
Percentage of other deposits to deposits	0.42%	0.44%
Percent Total Deposits	100.00%	100.00%
Deposits, by Type [Abstract]
Noninterest-bearing demand	$ 56,634	$ 50,731
Interest-bearing checking	33,106	30,860
Savings	95,230	95,009
Money market	163,380	148,702
Certificates of deposit	255,854	200,123
Mortgagors deposits	2,537	2,336
Deposits	$ 606,741	$ 527,761
Weighted Average Rate Domestic Deposit Liabilities [Abstract]
Weighted Average Rate Domestic Deposit, Demand	0.00%	0.00%
Weighted Average Rate Domestic Deposit, Checking	0.16%	0.16%
Weighted Average Rate Domestic Deposit, Savings	0.27%	0.27%
Weighted Average Rate Domestic Deposit, Money Market	0.52%	0.49%
Weighted Average Rate Domestic Deposit, Certificates of Deposit	0.92%	0.93%
Weighted Average Rate-Other Deposit	1.22%	1.53%
Weighted Average Rate Domestic Deposit	0.59%	0.55%

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Other Deposits

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Percent Total Deposits

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Percentage of Noninterest bearing demand deposits to deposits

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Percentage of other deposits to deposits

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Weighted Average Rate-Other Deposit

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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

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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.

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
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Amount of interest-bearing domestic checking deposit liabilities.

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
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The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Percentage of interest-bearing domestic deposit liabilities to total deposit liabilities.

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

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

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

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Amount of time deposit liabilities, including certificates of deposit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Industry Guide
-Number 3
-Section V
-Paragraph D-E

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The weighted average interest rate for all domestic deposit liabilities.

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

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The weighted average interest rate for domestic checking deposit liabilities.

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The weighted average interest rate for domestic demand deposit liabilities.

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

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The weighted average interest rate for domestic savings deposit liabilities.

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