    <SEC-DOCUMENT>0001437749-26-010883-index.html : 20260401
    <SEC-HEADER>0001437749-26-010883.hdr.sgml : 20260401
    <ACCEPTANCE-DATETIME>20260401161520
    ACCESSION NUMBER:		0001437749-26-010883
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		46
    CONFORMED PERIOD OF REPORT:	20260514
    FILED AS OF DATE:		20260401
    DATE AS OF CHANGE:		20260401

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ALERUS FINANCIAL CORP
    		CENTRAL INDEX KEY:			0000903419
    		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
    		ORGANIZATION NAME:           	02 Finance
    		EIN:				450375407
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-39036
    		FILM NUMBER:		26828349

    	BUSINESS ADDRESS:
    		STREET 1:		401 DEMERS AVE
    		CITY:			GRAND FORKS
    		STATE:			ND
    		ZIP:			58201
    		BUSINESS PHONE:		7017953200

    	MAIL ADDRESS:
    		STREET 1:		PO BOX 6001
    		STREET 2:		401 DEMERS AVE
    		CITY:			GRAND FORKS
    		STATE:			ND
    		ZIP:			58206-6001

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	FIRST NATIONAL CORP NORTH DAKOTA
    		DATE OF NAME CHANGE:	19980312
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>alrs20251215_def14a.htm
    <DESCRIPTION>FORM DEF 14A
    <TEXT>
    Document 1 - file: alrs20251215_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>2
    <FILENAME>alrs-20251231.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 2 - file: alrs-20251231.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>3
    <FILENAME>alrs-20251231_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 3 - file: alrs-20251231_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>alrs-20251231_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 4 - file: alrs-20251231_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>alrs-20251231_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 5 - file: alrs-20251231_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>alrs20250303_pre14aimg002.jpg
    <TEXT>
    Document 6 - file: alrs20250303_pre14aimg002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>alrs20250303_pre14aimg003.jpg
    <TEXT>
    Document 7 - file: alrs20250303_pre14aimg003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>alrs20250303_pre14aimg004.jpg
    <TEXT>
    Document 8 - file: alrs20250303_pre14aimg004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>alrs20250303_pre14aimg005.jpg
    <TEXT>
    Document 9 - file: alrs20250303_pre14aimg005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>alrs20250303_pre14aimg009.jpg
    <TEXT>
    Document 10 - file: alrs20250303_pre14aimg009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>alrs20250303_pre14aimg013.jpg
    <TEXT>
    Document 11 - file: alrs20250303_pre14aimg013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>alrs20250303_pre14aimg015.jpg
    <TEXT>
    Document 12 - file: alrs20250303_pre14aimg015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>alrs20250303_pre14aimg017.jpg
    <TEXT>
    Document 13 - file: alrs20250303_pre14aimg017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>alrs20250303_pre14aimg019.jpg
    <TEXT>
    Document 14 - file: alrs20250303_pre14aimg019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>alrs20250303_pre14aimg021.jpg
    <TEXT>
    Document 15 - file: alrs20250303_pre14aimg021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>alrs20250303_pre14aimg023.jpg
    <TEXT>
    Document 16 - file: alrs20250303_pre14aimg023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>alrs20250303_pre14aimg025.jpg
    <TEXT>
    Document 17 - file: alrs20250303_pre14aimg025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>alrs20250303_pre14aimg027.jpg
    <TEXT>
    Document 18 - file: alrs20250303_pre14aimg027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>alrs20250303_pre14aimg031.jpg
    <TEXT>
    Document 19 - file: alrs20250303_pre14aimg031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>alrs20250303_pre14aimg033.jpg
    <TEXT>
    Document 20 - file: alrs20250303_pre14aimg033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>alrs20250303_pre14aimg035.jpg
    <TEXT>
    Document 21 - file: alrs20250303_pre14aimg035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>alrs20250303_pre14aimg049.jpg
    <TEXT>
    Document 22 - file: alrs20250303_pre14aimg049.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>alrs20250303_pre14aimg053.jpg
    <TEXT>
    Document 23 - file: alrs20250303_pre14aimg053.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>cap01.jpg
    <TEXT>
    Document 24 - file: cap01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>cap02.jpg
    <TEXT>
    Document 25 - file: cap02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>cap03.jpg
    <TEXT>
    Document 26 - file: cap03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>collins.jpg
    <TEXT>
    Document 27 - file: collins.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>cover01.jpg
    <TEXT>
    Document 28 - file: cover01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>icon.jpg
    <TEXT>
    Document 29 - file: icon.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>logo.jpg
    <TEXT>
    Document 30 - file: logo.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>logosmall.jpg
    <TEXT>
    Document 31 - file: logosmall.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>lor26.jpg
    <TEXT>
    Document 32 - file: lor26.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>pc01.jpg
    <TEXT>
    Document 33 - file: pc01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>pc02.jpg
    <TEXT>
    Document 34 - file: pc02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>pc03.jpg
    <TEXT>
    Document 35 - file: pc03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>37
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 37 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>38
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 38 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>39
    <FILENAME>R3.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 39 - file: R3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>40
    <FILENAME>R4.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 40 - file: R4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>41
    <FILENAME>R5.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 41 - file: R5.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>42
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 42 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>43
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 43 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>45
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 45 - file: FilingSummary.html

    Document 45 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>47
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 47 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>48
    <FILENAME>0001437749-26-010883-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 48 - file: 0001437749-26-010883-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>49
    <FILENAME>alrs20251215_def14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 49 - file: alrs20251215_def14a_htm.html

    Document 49 - RAW XML: alrs20251215_def14a_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>