    <SEC-DOCUMENT>0001564590-21-059442-index.html : 20211206
    <SEC-HEADER>0001564590-21-059442.hdr.sgml : 20211206
    <ACCEPTANCE-DATETIME>20211206164636
    ACCESSION NUMBER:		0001564590-21-059442
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		6
    CONFORMED PERIOD OF REPORT:	20211228
    FILED AS OF DATE:		20211206
    DATE AS OF CHANGE:		20211206

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			LGL GROUP INC
    		CENTRAL INDEX KEY:			0000061004
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS, NEC [3679]
    		IRS NUMBER:				381799862
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-00106
    		FILM NUMBER:		211473634

    	BUSINESS ADDRESS:
    		STREET 1:		2525 SHADER ROAD
    		CITY:			ORLANDO
    		STATE:			FL
    		ZIP:			32804
    		BUSINESS PHONE:		(407) 298-2000

    	MAIL ADDRESS:
    		STREET 1:		2525 SHADER ROAD
    		CITY:			ORLANDO
    		STATE:			FL
    		ZIP:			32804

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	LYNCH CORP
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>lgl-def14a_20211229.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: lgl-def14a_20211229.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-1
    <SEQUENCE>2
    <FILENAME>lgl-ex1_6.htm
    <DESCRIPTION>ANNEX A
    <TEXT>
    Document 2 - file: lgl-ex1_6.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-2
    <SEQUENCE>3
    <FILENAME>lgl-ex2_7.htm
    <DESCRIPTION>ANNEX B
    <TEXT>
    Document 3 - file: lgl-ex2_7.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>gsflms1epqqs000002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: gsflms1epqqs000002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>gsflms1epqqs000001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: gsflms1epqqs000001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>gsflms1epqqs000003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: gsflms1epqqs000003.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>