Note 3 - Segment Information

12 Months Ended

Dec. 31, 2025

Notes to Financial Statements

Segment Reporting Disclosure [Text Block]

3. Segment Information

Chief Operating Decision Maker

The Company's chief operating decision maker ("CODM") is the Chief Executive Officer.

Reportable Segments

The Company reports its results from operations consistent with the manner in which the CODM reviews the business to assess performance and allocate resources. As such, the Company reports its results in two reporting segments: Electronic Instruments and Merchant Investment. A brief description of each segment is below:

The Electronic Instruments segment includes all products manufactured and sold by PTF.

The Merchant Investment segment includes all activity produced by Lynch Capital International, LLC ("Lynch Capital").

The Company includes in Corporate the following corporate and business activities:

• corporate level assets and financial obligations such as cash and equivalents invested in highly liquid U.S. Treasury money market funds and other marketable securities;

• other items not allocated to or directly related to the Company's operating segments, including items such as deferred tax balances; and

• intercompany eliminations.

Measure of Segment Profit or Loss and Segment Assets

The accounting policies used in both the Electronic Instruments and Merchant Investment segments are the same as those described in Note 2 – Summary of Significant Accounting Policies.

The CODM assesses the performance of and decide how to allocate resources to each reporting segment based on Segment profit (loss), which is total revenues less Manufacturing cost of sales and Engineering, selling, and administrative. The CODM uses Segment profit (loss) to evaluate the overall profitability of the Electronic Instruments, Merchant Investment, and Corporate segments. Additionally, the CODM uses Segment profit (loss) to allocate resources in the annual budgeting and forecasting process. The CODM considers budget-to-actual variances when making decisions about allocating capital to each segment.

The measure of segment assets is reported on the Consolidated Balance Sheets as consolidated Total assets. The CODM uses Total assets of each segment to allocate overhead expenses incurred by the Corporate segment.

The following tables present LGL Group's operations by segment:

	Year Ended December 31, 2025
	Electronic Instruments		Merchant Investment		Corporate			Consolidated
Revenues:
Net sales	$	2,453	$	—	$	—		$	2,453
Net investment income		—		1,042		655			1,697
Net gains		—		—		19			19
Total revenues		2,453		1,042		674			4,169
Less:
Manufacturing cost of sales		1,155		—		—			1,155
Engineering		259		—		—			259
Commissions		70		—		—			70
Sales and marketing		194		—		—			194
Accounting		—		—		225			225
Compensation		245		—		505			750
Corporate allocations (a)		51		455		(506	)		—
Other segment items (b)		183		22		1,062			1,267
Engineering, selling and administrative		1,002		477		1,286			2,765
Total expenses		2,157		477		1,286			3,920
Segment profit (loss)	$	296	$	565	$	(612	)	$	249
Reconciliation of Segment profit (loss) to Income before income taxes
Adjustments and reconciling items									—
Income before income taxes								$	249

	Year Ended December 31, 2024
	Electronic Instruments		Merchant Investment		Corporate			Consolidated
Revenues:
Net sales	$	2,226	$	—	$	—		$	2,226
Net investment income		—		1,228		843			2,071
Net losses		—		—		(5	)		(5	)
Total revenues		2,226		1,228		838			4,292
Less:
Manufacturing cost of sales		1,047		—		—			1,047
Engineering		209		—		—			209
Commissions		112		—		—			112
Sales and marketing		185		—		—			185
Accounting		—		—		270			270
Compensation		243		—		779			1,022
Corporate allocations (a)		42		371		(413	)		—
Other segment items (b)		145		10		593			748
Engineering, selling and administrative		936		381		1,229			2,546
Total expenses		1,983		381		1,229			3,593
Segment profit (loss)	$	243	$	847	$	(391	)	$	699
Reconciliation of Segment profit (loss) to Income before income taxes
Adjustments and reconciling items									—
Income before income taxes								$	699

^(a) The Electronic Instruments and Merchant Investment segments are allocated overhead expenses from the Corporate segment based on each segment's assets as a percentage of Total assets.

(b)	Other segment items for each reportable segment includes the following:
		Electronic Instruments - rent, amortization, professional service fees, and certain other overhead expenses.
		Merchant Investment - legal expense and certain other overhead expenses.
		Corporate - legal expense, insurance expense, filing fees, fees paid to MtronPTI under Amended and Restated Transitional Administrative and Management Services Agreement, expense reimbursements paid to or received from MtronPTI, and certain other overhead expenses.

Other Segment Disclosures

The following table presents other segment information by segment:

	As of and For Year Ended December 31, 2025
	Electronic Instruments		Merchant Investment		Corporate		Total		Adjustments and Reconciling Items		Consolidated
Interest revenue (a)	$	—	$	1,042	$	655	$	1,697	$	—	$	1,697
Amortization (b)		21		—		—		21		—		21
Other significant non-cash items:
Stock-based compensation (c)		—		—		61		61		—		61
Total assets		1,237		25,768		19,771		46,776		—		46,776
Capital expenditures		—		—		—		—		—		—

	As of and For Year Ended December 31, 2024
	Electronic Instruments		Merchant Investment		Corporate		Total		Adjustments and Reconciling Items		Consolidated
Interest revenue (a)	$	—	$	1,228	$	843	$	2,071	$	—	$	2,071
Amortization (b)		21		—		—		21		—		21
Other significant non-cash items:
Stock-based compensation (c)		—		—		36		36		—		36
Total assets		1,249		24,748		17,148		43,145		—		43,145
Capital expenditures		—		—		—		—		—		—

^(a) Interest revenue is included in Net investment income on the Consolidated Statements of Operations.

^(b) Amortization is included within the other segment expense captions, such as Manufacturing cost of sales, Engineering, or Other segment items.

^(c) Stock-based compensation is included within the Compensation expense caption.