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BASIS OF PRESENTATION	6 Months Ended
	Sep. 30, 2017
Basis Of Presentation [Abstract]
BASIS OF PRESENTATION	1. BASIS OF PRESENTATION The accompanying unaudited consolidated financial statements were prepared in accordance with instructions for Quarterly Reports on Form 10-Q and, therefore, do not include all disclosures necessary for a complete presentation of financial condition, results of operations and cash flows in conformity with accounting principles generally accepted in the United States of America ("GAAP"). However, all adjustments that are, in the opinion of management, necessary for a fair presentation of the interim unaudited consolidated financial statements have been included. All such adjustments are of a normal recurring nature. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Riverview Bancorp, Inc. Annual Report on Form 10-K for the year ended March 31, 2017 ("2017 Form 10-K"). The unaudited consolidated results of operations for the six months ended September 30, 2017 are not necessarily indicative of the results which may be expected for the entire fiscal year ending March 31, 2018. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On February 17, 2017, Riverview Bancorp, Inc. and Riverview Community Bank completed the purchase and assumption transaction in which Riverview Community Bank purchased certain assets and assumed certain liabilities of MBank, the wholly-owned subsidiary of Merchants Bancorp (the "MBank transaction"). In addition, as part of the MBank transaction, Riverview Bancorp, Inc. assumed the obligations of Merchant Bancorp's trust preferred securities. The MBank transaction was accounted for as a business combination pursuant to GAAP. The results of operations of the acquired assets and assumed liabilities have been included in the Company's consolidated financial statements as of and for the period since the acquisition date. See Note 3 for additional discussion.

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- Definition

The entire disclosure for the basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-URI http://asc.fasb.org/topic&trid=2122369

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