XML 11 R1.htm IDEA: XBRL DOCUMENT v3.3.1.900
Document and Entity Information - shares
 9 Months Ended
Dec. 31, 2015
Feb. 09, 2016
Document and Entity Information:    
Entity Registrant Name RIVERVIEW BANCORP INC  
Document Type 10-Q  
Document Period End Date Dec. 31, 2015  
Trading Symbol rvsb  
Amendment Flag false  
Entity Central Index Key 0001041368  
Current Fiscal Year End Date --03-31  
Entity Common Stock, Shares Outstanding   22,507,890
Entity Filer Category Accelerated Filer  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer No  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3