    <SEC-DOCUMENT>0001437749-25-009730-index.html : 20250328
    <SEC-HEADER>0001437749-25-009730.hdr.sgml : 20250328
    <ACCEPTANCE-DATETIME>20250328110043
    ACCESSION NUMBER:		0001437749-25-009730
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		63
    CONFORMED PERIOD OF REPORT:	20250508
    FILED AS OF DATE:		20250328
    DATE AS OF CHANGE:		20250328

    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:		25781958

    	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>alrs20250319_def14a.htm
    <DESCRIPTION>FORM DEF 14A
    <TEXT>
    Document 1 - file: alrs20250319_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>2
    <FILENAME>alrs-20241231.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 2 - file: alrs-20241231.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>3
    <FILENAME>alrs-20241231_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 3 - file: alrs-20241231_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>alrs-20241231_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 4 - file: alrs-20241231_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>alrs-20241231_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 5 - file: alrs-20241231_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_pre14aimg007.jpg
    <TEXT>
    Document 10 - file: alrs20250303_pre14aimg007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>alrs20250303_pre14aimg008.jpg
    <TEXT>
    Document 11 - file: alrs20250303_pre14aimg008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>alrs20250303_pre14aimg009.jpg
    <TEXT>
    Document 12 - file: alrs20250303_pre14aimg009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>alrs20250303_pre14aimg010.jpg
    <TEXT>
    Document 13 - file: alrs20250303_pre14aimg010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>alrs20250303_pre14aimg011.jpg
    <TEXT>
    Document 14 - file: alrs20250303_pre14aimg011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>alrs20250303_pre14aimg012.jpg
    <TEXT>
    Document 15 - file: alrs20250303_pre14aimg012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>alrs20250303_pre14aimg013.jpg
    <TEXT>
    Document 16 - file: alrs20250303_pre14aimg013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>alrs20250303_pre14aimg014.jpg
    <TEXT>
    Document 17 - file: alrs20250303_pre14aimg014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>alrs20250303_pre14aimg015.jpg
    <TEXT>
    Document 18 - file: alrs20250303_pre14aimg015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>alrs20250303_pre14aimg016.jpg
    <TEXT>
    Document 19 - file: alrs20250303_pre14aimg016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>alrs20250303_pre14aimg017.jpg
    <TEXT>
    Document 20 - file: alrs20250303_pre14aimg017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>alrs20250303_pre14aimg018.jpg
    <TEXT>
    Document 21 - file: alrs20250303_pre14aimg018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>alrs20250303_pre14aimg019.jpg
    <TEXT>
    Document 22 - file: alrs20250303_pre14aimg019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>alrs20250303_pre14aimg020.jpg
    <TEXT>
    Document 23 - file: alrs20250303_pre14aimg020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>alrs20250303_pre14aimg021.jpg
    <TEXT>
    Document 24 - file: alrs20250303_pre14aimg021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>alrs20250303_pre14aimg022.jpg
    <TEXT>
    Document 25 - file: alrs20250303_pre14aimg022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>alrs20250303_pre14aimg023.jpg
    <TEXT>
    Document 26 - file: alrs20250303_pre14aimg023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>alrs20250303_pre14aimg024.jpg
    <TEXT>
    Document 27 - file: alrs20250303_pre14aimg024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>alrs20250303_pre14aimg025.jpg
    <TEXT>
    Document 28 - file: alrs20250303_pre14aimg025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>alrs20250303_pre14aimg026.jpg
    <TEXT>
    Document 29 - file: alrs20250303_pre14aimg026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>alrs20250303_pre14aimg027.jpg
    <TEXT>
    Document 30 - file: alrs20250303_pre14aimg027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>alrs20250303_pre14aimg028.jpg
    <TEXT>
    Document 31 - file: alrs20250303_pre14aimg028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>alrs20250303_pre14aimg029.jpg
    <TEXT>
    Document 32 - file: alrs20250303_pre14aimg029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>alrs20250303_pre14aimg030.jpg
    <TEXT>
    Document 33 - file: alrs20250303_pre14aimg030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>alrs20250303_pre14aimg031.jpg
    <TEXT>
    Document 34 - file: alrs20250303_pre14aimg031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>alrs20250303_pre14aimg032.jpg
    <TEXT>
    Document 35 - file: alrs20250303_pre14aimg032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>alrs20250303_pre14aimg033.jpg
    <TEXT>
    Document 36 - file: alrs20250303_pre14aimg033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>alrs20250303_pre14aimg034.jpg
    <TEXT>
    Document 37 - file: alrs20250303_pre14aimg034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>alrs20250303_pre14aimg035.jpg
    <TEXT>
    Document 38 - file: alrs20250303_pre14aimg035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>alrs20250303_pre14aimg049.jpg
    <TEXT>
    Document 39 - file: alrs20250303_pre14aimg049.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>alrs20250303_pre14aimg050.jpg
    <TEXT>
    Document 40 - file: alrs20250303_pre14aimg050.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>alrs20250303_pre14aimg051.jpg
    <TEXT>
    Document 41 - file: alrs20250303_pre14aimg051.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>alrs20250303_pre14aimg052.jpg
    <TEXT>
    Document 42 - file: alrs20250303_pre14aimg052.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>alrs20250303_pre14aimg053.jpg
    <TEXT>
    Document 43 - file: alrs20250303_pre14aimg053.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>capg1.jpg
    <TEXT>
    Document 44 - file: capg1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>capg2.jpg
    <TEXT>
    Document 45 - file: capg2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>capg3.jpg
    <TEXT>
    Document 46 - file: capg3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>cover.jpg
    <TEXT>
    Document 47 - file: cover.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>logo.jpg
    <TEXT>
    Document 48 - file: logo.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>logosmall.jpg
    <TEXT>
    Document 49 - file: logosmall.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>p01.jpg
    <TEXT>
    Document 50 - file: p01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>p02.jpg
    <TEXT>
    Document 51 - file: p02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>52
    <FILENAME>p03.jpg
    <TEXT>
    Document 52 - file: p03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>54
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 54 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>56
    <FILENAME>R3.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 56 - file: R3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>57
    <FILENAME>R4.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 57 - file: R4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>58
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 58 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>59
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>61
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 61 - file: FilingSummary.html

    Document 61 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>63
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 63 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>64
    <FILENAME>0001437749-25-009730-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 64 - file: 0001437749-25-009730-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>65
    <FILENAME>alrs20250319_def14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 65 - file: alrs20250319_def14a_htm.html

    Document 65 - RAW XML: alrs20250319_def14a_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>