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RIVERVIEW BANCORP, INC. (PARENT COMPANY ONLY): Schedule of Quarterly Financial Information (Details 3) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  | $ 1,869 | $ 1,742 | $ 1,916
Net interest income |  |  |  |  |  |  |  |  |  | 33,758 | 29,206 | 26,710
Recapture of loan losses |  |  |  |  |  |  |  |  |  |  | (1,150) | (1,800)
Non-interest income, net |  |  |  |  |  |  |  |  |  | 10,014 | 9,375 | 8,875
Non-interest expense |  |  |  |  |  |  |  |  |  | 32,981 | 29,947 | 30,744
Income before income taxes |  |  |  |  |  |  |  |  |  | 10,791 | 9,784 | 6,641
Provision for income taxes |  |  |  |  |  |  |  |  |  | $ 3,387 | $ 3,426 | $ 2,150
Basic earnings per share (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 0.33 | $ 0.28 | $ 0.20
Diluted earnings per share (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 0.33 | $ 0.28 | $ 0.20
Parent Company |  |  |  |  |  |  |  |  |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest and dividend income |  | $ 9,883 | $ 8,952 | $ 8,530 | $ 8,262 | $ 7,864 | $ 7,921 | $ 7,602 | $ 7,561 |  |  |
Interest expense |  | 538 | 450 | 442 | 439 | 432 | 434 | 439 | 437 |  |  |
Net interest income |  | 9,345 | 8,502 | 8,088 | 7,823 | 7,432 | 7,487 | 7,163 | 7,124 |  |  |
Recapture of loan losses |  |  |  |  |  | (350) |  | (300) | (500) |  |  |
Non-interest income, net |  | 2,586 | 2,333 | 2,581 | 2,514 | 2,193 | 2,417 | 2,216 | 2,549 |  |  |
Non-interest expense |  | 8,918 | 7,851 | 8,397 | 7,815 | 7,569 | 7,349 | 7,284 | 7,745 |  |  |
Income before income taxes |  | 3,013 | 2,984 | 2,272 | 2,522 | 2,406 | 2,555 | 2,395 | 2,428 |  |  |
Provision for income taxes |  | 979 | 991 | 592 | 825 | 1,001 | 849 | 743 | 833 | $ (235) | $ (187) | $ (197)
Net income |  | $ 2,034 | $ 1,993 | $ 1,680 | $ 1,697 | $ 1,405 | $ 1,706 | $ 1,652 | $ 1,595 |  |  |
Basic earnings per share (in dollars per share) | [1] | $ 0.09 | $ 0.09 | $ 0.07 | $ 0.08 | $ 0.06 | $ 0.08 | $ 0.07 | $ 0.07 |  |  |
Diluted earnings per share (in dollars per share) | [1] | $ 0.09 | $ 0.09 | $ 0.07 | $ 0.08 | $ 0.06 | $ 0.08 | $ 0.07 | $ 0.07 |  |  |
[1] | Quarterly earnings per share may vary from annual earnings per share due to rounding.

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