    <SEC-DOCUMENT>0001493152-25-024407-index.html : 20251120
    <SEC-HEADER>0001493152-25-024407.hdr.sgml : 20251120
    <ACCEPTANCE-DATETIME>20251120091816
    ACCESSION NUMBER:		0001493152-25-024407
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20251120
    FILED AS OF DATE:		20251120
    DATE AS OF CHANGE:		20251120

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Ocean Power Technologies, Inc.
    		CENTRAL INDEX KEY:			0001378140
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		EIN:				222535818
    		STATE OF INCORPORATION:			NJ
    		FISCAL YEAR END:			0430

    	FILING VALUES:
    		FORM TYPE:		PRE 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33417
    		FILM NUMBER:		251501337

    	BUSINESS ADDRESS:
    		STREET 1:		28 ENGELHARD DRIVE
    		STREET 2:		SUITE B
    		CITY:			MONROE TOWNSHIP
    		STATE:			NJ
    		ZIP:			08831
    		BUSINESS PHONE:		609-730-0400

    	MAIL ADDRESS:
    		STREET 1:		28 ENGELHARD DRIVE
    		STREET 2:		SUITE B
    		CITY:			MONROE TOWNSHIP
    		STATE:			NJ
    		ZIP:			08831

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Ocean Power Technologies, INc.
    		DATE OF NAME CHANGE:	20061012
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>PRE 14A
    <SEQUENCE>1
    <FILENAME>formpre14a.htm
    <DESCRIPTION>PRE 14A
    <TEXT>
    Document 1 - file: formpre14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>formpre14a_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: formpre14a_001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>formpre14a_002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: formpre14a_002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>formpre14a_004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: formpre14a_004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>proxy_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: proxy_001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>proxy_002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: proxy_002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>formpre14a_005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: formpre14a_005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>8
    <FILENAME>optt-20250430.xsd
    <DESCRIPTION>XBRL SCHEMA FILE
    <TEXT>
    Document 8 - file: optt-20250430.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>9
    <FILENAME>optt-20250430_def.xml
    <DESCRIPTION>XBRL DEFINITION FILE
    <TEXT>
    Document 9 - file: optt-20250430_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>10
    <FILENAME>optt-20250430_lab.xml
    <DESCRIPTION>XBRL LABEL FILE
    <TEXT>
    Document 10 - file: optt-20250430_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>11
    <FILENAME>optt-20250430_pre.xml
    <DESCRIPTION>XBRL PRESENTATION FILE
    <TEXT>
    Document 11 - file: optt-20250430_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>13
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 13 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>14
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 14 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>15
    <FILENAME>R3.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: R3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>17
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>19
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 19 - file: FilingSummary.html

    Document 19 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>21
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 21 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>22
    <FILENAME>0001493152-25-024407-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 22 - file: 0001493152-25-024407-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>23
    <FILENAME>formpre14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 23 - file: formpre14a_htm.html

    Document 23 - RAW XML: formpre14a_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>