    <SEC-DOCUMENT>0000807863-17-000029-index.html : 20171010
    <SEC-HEADER>0000807863-17-000029.hdr.sgml : 20171010
    <ACCEPTANCE-DATETIME>20171010162542
    ACCESSION NUMBER:		0000807863-17-000029
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		20
    CONFORMED PERIOD OF REPORT:	20171005
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20171010
    DATE AS OF CHANGE:		20171010

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MITEK SYSTEMS INC
    		CENTRAL INDEX KEY:			0000807863
    		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER PERIPHERAL EQUIPMENT, NEC [3577]
    		IRS NUMBER:				870418827
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0930

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-35231
    		FILM NUMBER:		171130768

    	BUSINESS ADDRESS:
    		STREET 1:		600 B STREET
    		STREET 2:		SUITE 100
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92101
    		BUSINESS PHONE:		619-269-6800

    	MAIL ADDRESS:
    		STREET 1:		600 B STREET
    		STREET 2:		SUITE 100
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92101
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>mitk-20171005x8kxlease.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: mitk-20171005x8kxlease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>mitk-20171005xexx101.htm
    <DESCRIPTION>EXHIBIT 10.1
    <TEXT>
    Document 2 - file: mitk-20171005xexx101.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>buildingstandards01.jpg
    <TEXT>
    Document 3 - file: buildingstandards01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>buildingstandards02.jpg
    <TEXT>
    Document 4 - file: buildingstandards02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>buildingstandards03.jpg
    <TEXT>
    Document 5 - file: buildingstandards03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>buildingstandards04.jpg
    <TEXT>
    Document 6 - file: buildingstandards04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>buildingstandards05.jpg
    <TEXT>
    Document 7 - file: buildingstandards05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>buildingstandards06.jpg
    <TEXT>
    Document 8 - file: buildingstandards06.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>buildingstandards07.jpg
    <TEXT>
    Document 9 - file: buildingstandards07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>buildingstandards08.jpg
    <TEXT>
    Document 10 - file: buildingstandards08.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>buildingstandards09.jpg
    <TEXT>
    Document 11 - file: buildingstandards09.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>buildingstandards10.jpg
    <TEXT>
    Document 12 - file: buildingstandards10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>buildingstandards11.jpg
    <TEXT>
    Document 13 - file: buildingstandards11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>buildingstandards12.jpg
    <TEXT>
    Document 14 - file: buildingstandards12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>buildingstandards13.jpg
    <TEXT>
    Document 15 - file: buildingstandards13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>buildingstandards14.jpg
    <TEXT>
    Document 16 - file: buildingstandards14.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>floorplan100.jpg
    <TEXT>
    Document 17 - file: floorplan100.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>floorplan200.jpg
    <TEXT>
    Document 18 - file: floorplan200.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>signage01.jpg
    <TEXT>
    Document 19 - file: signage01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>signage02.jpg
    <TEXT>
    Document 20 - file: signage02.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>