    <SEC-DOCUMENT>0001437749-22-027299-index.html : 20221114
    <SEC-HEADER>0001437749-22-027299.hdr.sgml : 20221114
    <ACCEPTANCE-DATETIME>20221114162343
    ACCESSION NUMBER:		0001437749-22-027299
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20221114
    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:		20221114
    DATE AS OF CHANGE:		20221114

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Horizon Technology Finance Corp
    		CENTRAL INDEX KEY:			0001487428
    		IRS NUMBER:				272114934
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	814-00802
    		FILM NUMBER:		221386038

    	BUSINESS ADDRESS:
    		STREET 1:		312 FARMINGTON AVENUE
    		CITY:			FARMINGTON
    		STATE:			CT
    		ZIP:			06032
    		BUSINESS PHONE:		860-676-8654

    	MAIL ADDRESS:
    		STREET 1:		312 FARMINGTON AVENUE
    		CITY:			FARMINGTON
    		STATE:			CT
    		ZIP:			06032
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>hrzn20221111_8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: hrzn20221111_8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>ex_446179.htm
    <DESCRIPTION>EXHIBIT 10.1 - FORM 8-K - HORIZON 2022-1 - NOTE PURCHASE AGREEMENT
    <TEXT>
    Document 2 - file: ex_446179.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.2
    <SEQUENCE>3
    <FILENAME>ex_446180.htm
    <DESCRIPTION>EXHIBIT 10.2 - FORM 8-K - HORIZON 2022-1 - INDENTURE
    <TEXT>
    Document 3 - file: ex_446180.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.3
    <SEQUENCE>4
    <FILENAME>ex_446181.htm
    <DESCRIPTION>EXHIBIT 10.3 - FORM 8-K - HORIZON 2022-1 - SALE AND CONTRIBUTION AGREEMENT
    <TEXT>
    Document 4 - file: ex_446181.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.4
    <SEQUENCE>5
    <FILENAME>ex_446182.htm
    <DESCRIPTION>EXHIBIT 10.4 - FORM 8-K - HORIZON 2022-1 - SALE AND SERVICING AGREEMENT
    <TEXT>
    Document 5 - file: ex_446182.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.5
    <SEQUENCE>6
    <FILENAME>ex_446183.htm
    <DESCRIPTION>EXHIBIT 10.5 - FORM 8-K - HORIZON 2022-1 - ADMINISTRATION AGREEMENT
    <TEXT>
    Document 6 - file: ex_446183.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.6
    <SEQUENCE>7
    <FILENAME>ex_446184.htm
    <DESCRIPTION>EXHIBIT 10.6 - FORM 8-K - AMENDED AND RESTATED TRUST AGREEMENT
    <TEXT>
    Document 7 - file: ex_446184.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>8
    <FILENAME>ex_446185.htm
    <DESCRIPTION>EXHIBIT 99.1 - FORM 8-K - HORIZON TECHNOLOGY FINANCE CORPORATION - PRESS RELEASE (SECURITIZATION) DATED NOVEMBER 11, 2022
    <TEXT>
    Document 8 - file: ex_446185.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>9
    <FILENAME>hrzn-20221114.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 9 - file: hrzn-20221114.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>10
    <FILENAME>hrzn-20221114_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 10 - file: hrzn-20221114_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>11
    <FILENAME>hrzn-20221114_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 11 - file: hrzn-20221114_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>12
    <FILENAME>hrzn-20221114_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 12 - file: hrzn-20221114_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>ex_446185img001.jpg
    <TEXT>
    Document 13 - file: ex_446185img001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>14
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 14 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>15
    <FILENAME>hrzn20221111_8k_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: hrzn20221111_8k_htm.html

    Document 15 - RAW XML: hrzn20221111_8k_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>16
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: Financial_Report.xlsx

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

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>18
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 18 - 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>0001437749-22-027299-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 22 - file: 0001437749-22-027299-xbrl.zip

    </DOCUMENT>
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