Junior Subordinated Debentures: Schedule of terms of the current Debentures (Details) $ in Thousands	6 Months Ended
Sep. 30, 2015 USD ($)
Long-term Debt, Gross	$ 22,681
Riverview Bancorp Statutory Trust I
Debt Instrument, date of issuance	12/2005
Long-term Debt, Gross	$ 7,217
Debt Instrument, Interest Rate Terms	Variable (1)
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	5.88%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.70%
Debt Instrument, Maturity Date, Description	3/2036
Riverview Bancorp Statutory Trust II
Debt Instrument, date of issuance	06/2007
Long-term Debt, Gross	$ 15,464
Debt Instrument, Interest Rate Terms	Variable (2)
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	7.03%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.69%
Debt Instrument, Maturity Date, Description	9/2037

Description of the date the debt instrument was issued.

No definition available.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

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Period Type:	instant

- Definition

Maximum contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Minimum contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

+ Details

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- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

+ Details

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- Details

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- Details

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