CompX International (CIX) 10-K 1 Mar 23 2022 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Feb. 21, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-13905
Entity Registrant Name	COMPX INTERNATIONAL INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	57-0981653
Entity Address, Address Line One	5430 LBJ Freeway
Entity Address, Address Line Two	Suite 1700
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75240-2620
City Area Code	972
Local Phone Number	448-1400
Title of 12(b) Security	Class A common stock
Trading Symbol	CIX
Security Exchange Name	NYSEAMER
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 36
Entity Common Stock, Shares Outstanding		12,307,157
Documents Incorporated by Reference [Text Block]	The information required by Part III is incorporated by reference from the Registrant’s definitive proxy statement to be filed with the Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this report.
Auditor Name	PricewaterhouseCoopers LLP
Auditor Firm ID	238
Auditor Location	Dallas, Texas
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Central Index Key	0001049606

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 26,748	$ 76,579
Marketable securities	33,147
Accounts receivable, net	17,840	15,546
Inventories, net	31,290	25,642
Prepaid expenses and other	2,136	2,464
Total current assets	111,161	120,231
Other assets:
Note receivable from affiliate	13,200	18,700
Goodwill	23,742	23,742
Other noncurrent assets	590	597
Total other assets	37,532	43,039
Property and equipment:
Land	5,390	5,071
Buildings	23,181	23,161
Equipment	74,113	70,664
Construction in progress	722	2,028
Gross property and equipment	103,406	100,924
Less accumulated depreciation	74,712	71,742
Net property and equipment	28,694	29,182
Total assets	177,387	192,452
Current liabilities:
Accounts payable and accrued liabilities	15,618	14,724
Income taxes payable to affiliate	1,035	1,722
Total current liabilities	16,653	16,446
Noncurrent liabilities:
Deferred income taxes	2,230	2,918
Other	68
Total noncurrent liabilities	2,298	2,918
Stockholders' equity:
Common stock	123	124
Additional paid-in capital	53,155	54,780
Retained earnings	105,175	118,184
Accumulated other comprehensive loss - unrealized loss on marketable securities	(17)
Total stockholders' equity	158,436	173,088
Total liabilities and stockholders' equity	$ 177,387	$ 192,452

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued	0	0
Common stock, shares issued	12,307,157	12,380,657
Common stock, shares outstanding	12,307,157	12,380,657
Common Class A [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	12,307,157	12,380,657
Common stock, shares outstanding	12,307,157	12,380,657

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 166,562	$ 140,815	$ 114,537
Cost of sales	117,763	98,066	81,689
Gross margin	48,799	42,749	32,848
Selling, general and administrative expense	23,363	22,223	21,031
Operating income	25,436	20,526	11,817
Interest income	1,877	1,197	1,680
Income before income taxes	27,313	21,723	13,497
Provision for income taxes	6,442	5,155	3,174
Net income	20,871	16,568	10,323
Other comprehensive loss, marketable securities adjustment:
Unrealized net loss arising during year	(17)
Comprehensive income	$ 20,854	$ 16,568	$ 10,323
Net income per basic share	$ 1.69	$ 1.34	$ 0.83
Net income per diluted share	$ 1.69	$ 1.34	$ 0.83
Weighted average shares outstanding - basic	12,340	12,411	12,448
Weighted average shares outstanding - diluted	12,340	12,411	12,448

CONSOLIDATED STATEMENT OF STOCK

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock Class A Common Stock	Additional paid-in Capital	Retained Earnings	Accumulated other comprehensive loss	Treasury Stock	Total
Balance at Dec. 31, 2019	$ 124	$ 55,869	$ 106,202			$ 162,195
Net income			10,323			10,323
Issuance of common stock		118				118
Cash dividends			(4,980)			(4,980)
Balance at Dec. 31, 2020	124	55,987	111,545			167,656
Net income			16,568			16,568
Issuance of common stock		104				104
Cash dividends			(9,929)			(9,929)
Treasury stock:
Acquired					$ (1,311)	(1,311)
Retired		(1,311)			1,311
Balance at Dec. 31, 2021	124	54,780	118,184			173,088
Net income			20,871			20,871
Issuance of common stock		118				118
Other comprehensive loss				$ (17)		(17)
Cash dividends			(33,880)			(33,880)
Treasury stock:
Acquired					(1,744)	(1,744)
Retired	(1)	(1,743)			$ 1,744
Balance at Dec. 31, 2022	$ 123	$ 53,155	$ 105,175	$ (17)		$ 158,436

CONSOLIDATED STATEMENT OF STO_2

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement Of Stockholders Equity [Abstract]
Cash dividends per share	$ 2.75	$ 0.80	$ 0.40

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 20,871	$ 16,568	$ 10,323
Depreciation and amortization	3,977	3,839	3,827
Deferred income taxes	(688)	(321)	(48)
Other, net	213	269	346
Change in assets and liabilities:
Accounts receivable, net	(2,309)	(4,806)	1,118
Inventories, net	(5,832)	(7,479)	(193)
Accounts payable and accrued liabilities	943	2,547	95
Accounts with affiliates	(687)	854	449
Prepaids and other, net	403	(997)	(415)
Net cash provided by operating activities	16,891	10,474	15,502
Cash flows from investing activities:
Capital expenditures	(3,695)	(4,094)	(1,740)
Proceeds from sale of fixed assets, net	133	2
Purchases of marketable securities	(33,036)
Note receivable from affiliate:
Collections	29,800	40,600	33,428
Advances	(24,300)	(29,800)	(34,828)
Net cash provided by (used in) investing activities	(31,098)	6,708	(3,140)
Cash flows from financing activities:
Dividends paid	(33,880)	(9,929)	(4,980)
Treasury stock acquired	(1,744)	(1,311)
Net cash used in financing activities	(35,624)	(11,240)	(4,980)
Cash and cash equivalents - net change from:
Operating, investing and financing activities	(49,831)	5,942	7,382
Balance at beginning of period	76,579	70,637	63,255
Balance at end of period	26,748	76,579	70,637
Supplemental disclosures -
Cash paid for income taxes	$ 7,817	$ 4,700	$ 3,261

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1 – Organization. Unless otherwise indicated, references in this report to “we,” “us,” or “our” refer to CompX International Inc. and its subsidiaries, taken as a whole. Management estimates. Principles of consolidation . Fiscal year. Cash and cash equivalents . Marketable securities and securities transactions. Fair Value Measurements and Disclosures ● Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; ● Level 2 – Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the assets or liability; and ● Level 3 – Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable. We classify our marketable debt securities as available-for-sale. We accumulate unrealized gains and losses on marketable debt securities as part of accumulated other comprehensive income (loss), net of related deferred income taxes. See Notes 3 and 12. We base realized gains and losses upon the specific identification of the securities sold. Accounts receivable. Inventories and cost of sales . Net sales . Revenue from Contracts with Customers, Revenue is recorded in an amount that reflects the net consideration we expect to receive in exchange for our products. Prices for our products are based on terms specified in published list prices and purchase orders, which generally do not include financing components, noncash consideration or consideration paid to our customers. As our standard payment terms are less than one year, we have elected the practical expedient under ASC 606 and we have not assessed whether a contract has a significant financing component. We state sales net of price, early payment and distributor discounts as well as volume rebates (collectively, variable consideration). Variable consideration, to the extent present, is not material and is recognized as the amount to which we are most-likely to be entitled, using all information (historical, current and forecasted) that is reasonably available to us, and only to the extent that a significant reversal in the amount of the cumulative revenue recognized is not probable of occurring in a future period. Differences, if any, between estimates of the amount of variable consideration to which we will be entitled and the actual amount of such variable consideration have not been material in the past. We occasionally receive partial or full consideration from our customers prior to the completion of our performance obligation (shipment of product). We record estimated deferred revenue on the amount to which we are most-likely to be entitled and deferred revenue is recognized into revenue as our performance obligation has been satisfied. Deferred revenue has not been material in the past. We report any tax assessed by a governmental authority that we collect from our customers that is both imposed on and concurrent with our revenue-producing activities (such as sales, use, value added and excise taxes) on a net basis (meaning we do not recognize these taxes either in our revenues or in our costs and expenses). Frequently, we receive orders for products to be delivered over dates that may extend across reporting periods. We invoice for each delivery upon shipment and recognize revenue for each distinct shipment when all sales recognition criteria for that shipment have been satisfied. As scheduled delivery dates for these orders are within a one year period, under the optional exemption provided by ASC 606, we do not disclose sales allocated to future shipments of partially completed contracts. We have determined that our disclosure of sales by segment meets the requirements to disclose a disaggregation of our sales into categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. See Note 2. Selling, general and administrative expenses; advertising costs. Goodwill. Property and equipment; depreciation expense . We perform impairment tests when events or changes in circumstances indicate the carrying value may not be recoverable. We consider all relevant factors. We perform the impairment test by comparing the estimated future undiscounted cash flows associated with the asset to the asset’s net carrying value to determine if impairment exists. Leases. Leases Employee benefit plans. Self-insurance. Income taxes . As a member of the Contran Tax Group, we are a party to a tax sharing agreement which provides that we compute our provision for U.S. income taxes on a separate-company basis. Pursuant to the tax sharing agreement, we make payments to or receive payments from NL in amounts we would have paid to or received from the U.S. Internal Revenue Service or the applicable state tax authority had we not been a member of the Contran Tax Group. The separate company provisions and payments are computed using the tax elections made by Contran. We made net cash payments for income taxes to NL of $3.2 million in 2020, $4.7 million in 2021 and $7.8 million in 2022. Deferred income tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the income tax and financial reporting carrying amounts of assets and liabilities. Deferred income tax assets and liabilities for each tax-paying jurisdiction in which we operate are netted and presented as either a noncurrent deferred income tax asset or liability, as applicable. We periodically evaluate our deferred tax assets in the various taxing jurisdictions in which we operate and adjust any related valuation allowance based on the estimate of the amount of deferred tax assets which we believe do not meet the more-likely-than-not recognition criteria. See Notes 8 and 11. We record a reserve for uncertain tax positions for tax positions where we believe it is more-likely-than-not our position will not prevail with the applicable tax authorities. We did not have a reserve for uncertain tax positions in 2020, 2021 or 2022.

Business and Geographic Segment

Business and Geographic Segments	12 Months Ended
	Dec. 31, 2022
Segment Reporting [Abstract]
Business and Geographic Segments	Note 2 – Our operating segments are defined as components of our operations about which separate financial information is available that is regularly evaluated by our chief operating decision maker in determining how to allocate resources and in assessing performance. At December 31, 2022, we had two reportable operating segments – Security Products and Marine Components. The Security Products segment, with a facility in South Carolina and a facility shared with Marine Components in Illinois, manufactures locking mechanisms and other security products for sale to the postal, transportation, office and institutional furniture, cabinetry, tool storage, healthcare and other industries. Our Marine Components segment, with a facility in Wisconsin and a facility shared with Security Products in Illinois, manufactures and distributes wake enhancement systems, stainless steel exhaust systems, gauges, throttle controls, trim tabs and related hardware and accessories primarily for ski/wakeboard boats and performance boats. The chief operating decision maker evaluates segment performance based on segment operating income, which is defined as income before income taxes, exclusive of certain general corporate income and expense items (primarily interest income) and certain non-recurring items (such as gains or losses on the disposition of long-lived assets outside the ordinary course of business). The accounting policies of the reportable operating segments are the same as those described in Note 1. Capital expenditures include additions to property and equipment but exclude amounts attributable to business combinations. Segment assets are comprised of all assets attributable to the reportable segments. Corporate assets are not attributable to the operating segments and consist primarily of cash, cash equivalents and note receivable from affiliate. For geographic information, the point of origin (place of manufacture) for all net sales is the U.S., the point of destination for net sales is based on the location of the customer, and property and equipment are attributable to their physical location. Intersegment sales are not material. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years ended December 31, ​ ​ 2020 2021 2022 ​ ​ (In thousands) Net sales: ​ ​ ​ ​ Security Products ​ $ 87,863 ​ $ 105,124 ​ $ 114,519 Marine Components ​ 26,674 ​ 35,691 ​ 52,043 Total net sales ​ $ 114,537 ​ $ 140,815 ​ $ 166,562 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating income: ​ ​ ​ Security Products ​ $ 14,926 ​ $ 21,622 ​ $ 22,744 Marine Components ​ 4,088 ​ 5,591 ​ 9,561 Corporate operating expenses ​ (7,197) ​ (6,687) ​ (6,869) Total operating income ​ 11,817 ​ 20,526 ​ 25,436 Interest income ​ 1,680 ​ 1,197 ​ 1,877 Income before income taxes ​ $ 13,497 ​ $ 21,723 ​ $ 27,313 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Depreciation and amortization: ​ ​ ​ Security Products ​ $ 3,069 ​ $ 2,890 ​ $ 2,801 Marine Components ​ 757 ​ 940 ​ 1,167 Corporate ​ 1 ​ 9 ​ 9 Total ​ $ 3,827 ​ $ 3,839 ​ $ 3,977 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capital expenditures: ​ ​ ​ ​ ​ ​ Security Products ​ $ 1,252 ​ $ 1,044 ​ $ 2,015 Marine Components ​ 458 ​ 3,050 ​ 1,680 Corporate ​ 30 ​ — ​ — Total ​ $ 1,740 ​ $ 4,094 ​ $ 3,695 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net sales point of destination: ​ ​ ​ ​ ​ ​ United States ​ $ 107,712 ​ $ 129,160 ​ $ 153,982 Canada ​ 4,423 ​ 8,061 ​ 9,227 Mexico ​ 431 ​ 589 ​ 722 Other ​ 1,971 ​ 3,005 ​ 2,631 Total ​ $ 114,537 ​ $ 140,815 ​ $ 166,562 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2021 2022 ​ ​ (In thousands) Total assets: ​ ​ ​ Security Products ​ $ 70,755 ​ $ 78,193 ​ $ 80,671 Marine Components ​ 15,515 ​ 18,167 ​ 26,372 Corporate ​ 97,775 ​ 96,092 ​ 70,344 Total ​ $ 184,045 ​ $ 192,452 ​ $ 177,387 ​ Net property and equipment for 2020, 2021 and 2022 is entirely located within the United States.

Marketable Securities

Marketable Securities	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Note 3 – ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized Unrealized ​ Market value cost basis loss, net ​ ​ (In thousands) December 31, 2021: ​ ​ ​ Current assets ​ $ — ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Current assets ​ $ 33,147 ​ $ 33,164 ​ $ (17) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Our marketable securities are invested in U.S. government treasuries with original maturities ranging in length from 4 months to 12 months. The fair value of our marketable securities are determined using Level 2 inputs (because although these securities are traded, in many cases the market is not active and the year-end valuation is generally based on the last trade of the year, which may be several days prior to December 31).

Accounts Receivable, Net

Accounts Receivable, Net	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Accounts Receivable, Net	Note 4 – ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Accounts receivable, net: ​ ​ Security Products ​ $ 12,896 ​ $ 13,767 Marine Components ​ 2,720 ​ 4,143 Allowance for doubtful accounts ​ (70) ​ (70) Total accounts receivable, net ​ $ 15,546 ​ $ 17,840 ​

Inventories, Net

Inventories, Net	12 Months Ended
	Dec. 31, 2022
Inventory Disclosure [Abstract]
Inventories, Net	Note 5 – ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Raw materials: ​ ​ Security Products ​ $ 3,640 ​ $ 4,172 Marine Components ​ 1,402 ​ 2,073 Total raw materials ​ 5,042 ​ 6,245 Work-in-process: ​ ​ Security Products ​ 12,721 ​ 14,193 Marine Components ​ 4,046 ​ 5,790 Total work-in-process ​ 16,767 ​ 19,983 Finished goods: ​ ​ Security Products ​ 2,271 ​ 3,163 Marine Components ​ 1,562 ​ 1,899 Total finished goods ​ 3,833 ​ 5,062 Total inventories, net ​ $ 25,642 ​ $ 31,290 ​

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2022
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	Note 6 – We assign goodwill based on reporting unit Goodwill units for impairment during the third quarter of each year or when circumstances arise that indicate an impairment might be present. In 2020, 2021 and 2022, our goodwill was tested for impairment only in the third quarter of each year in connection with our annual testing date. No impairment was indicated as part of such annual reviews of goodwill. As permitted by GAAP, during each of 2020, 2021 and 2022 we used the qualitative assessment of ASC 350-20-35 for our annual impairment test and determined it was not necessary to perform the quantitative goodwill impairment test. Our gross goodwill at December 31, 2022 is $33.6 million. Prior to 2020, we recorded a $9.9 million goodwill impairment in our Marine Components segment resulting in a net consolidated carrying amount of $23.7 million. There have been no changes in the carrying amount of our goodwill during the past three years.

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	12 Months Ended
	Dec. 31, 2022
Payables And Accruals [Abstract]
Accounts Payable and Accrued Liabilities	Note 7 – ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Accounts payable: ​ ​ Security Products ​ $ 2,594 ​ $ 2,663 Marine Components ​ 814 ​ 874 Accrued liabilities: ​ ​ Employee benefits ​ 9,797 ​ 10,489 Taxes other than on income ​ 391 ​ 279 Customer tooling ​ 516 ​ 135 Advances from customers ​ ​ — ​ ​ 298 Insurance ​ 208 ​ 255 Deferred revenue ​ ​ — ​ ​ 243 Other ​ 404 ​ 382 Total accounts payable and accrued liabilities ​ $ 14,724 ​ $ 15,618 ​

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Note 8 – The provision for income taxes and the difference between such provision for income taxes and the amount that would be expected using the U.S. federal statutory income tax rate of 21% are presented below. All of our pre-tax income relates to operations in the United States. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years ended December 31, ​ ​ 2020 2021 2022 ​ ​ (In thousands) Provision for income taxes: ​ ​ ​ ​ Currently payable ​ $ 3,222 ​ $ 5,476 ​ $ 7,130 Deferred income tax benefit ​ (48) ​ (321) ​ (688) Total ​ $ 3,174 ​ $ 5,155 ​ $ 6,442 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Expected tax expense, at the U.S. federal statutory ​ $ 2,835 ​ $ 4,562 ​ $ 5,736 State income taxes ​ 378 ​ 692 ​ 827 FDII benefit ​ (55) ​ (120) ​ (144) Other, net ​ 16 ​ 21 ​ 23 Total provision for income taxes ​ $ 3,174 ​ $ 5,155 ​ $ 6,442 ​ On August 16, 2022, the Inflation Reduction Act was signed into law. Among other things, this legislation provides for a 15% corporate alternative minimum tax on certain large corporations, imposes a 1% excise tax on qualifying stock buybacks for transactions occurring after December 31, 2022, and provides for certain energy-related tax credits. We have evaluated the relevant provisions of the Act and do not expect them to have a material impact on our tax provision. ​ Under the “Tax Cuts and Jobs Act,” domestic corporations who are U.S. exporters with no foreign operations may be eligible for a deduction under the foreign derived intangible income (FDII) provisions. We qualify for this deduction and recognized a current cash tax benefit of $.1 million in each of 2020, 2021 and 2022. See also Note 11 to our Consolidated Financial Statements. The components of the net deferred tax liability are summarized below. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Tax effect of temporary differences related to: ​ ​ Inventories ​ $ 531 ​ $ 369 Property and equipment ​ (2,951) ​ (2,188) Accrued liabilities and other deductible differences ​ 39 ​ 51 Accrued employee benefits ​ 1,182 ​ 1,262 Goodwill ​ (1,693) ​ (1,693) Other taxable differences ​ (26) ​ (31) Total deferred tax liability ​ $ (2,918) ​ $ (2,230) ​ We and Contran file income tax returns in U.S. federal and various state and local jurisdictions. Our income tax returns prior to 2019 are generally considered closed to examination by applicable tax authorities.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Stockholders' Equity	Note 9 – ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shares of common stock ​ Issued Treasury ​ Outstanding ​ ​ ​ ​ ​ ​ Balance at December 31, 2019 12,443,057 — ​ 12,443,057 Issued 8,100 — ​ 8,100 Balance at December 31, 2020 12,451,157 — ​ 12,451,157 Issued 4,500 — ​ 4,500 Acquired ​ — ​ (75,000) ​ (75,000) Retired ​ (75,000) ​ 75,000 ​ — Balance at December 31, 2021 12,380,657 — ​ 12,380,657 Issued 5,400 — ​ 5,400 Acquired ​ — ​ (78,900) ​ (78,900) Retired ​ (78,900) ​ 78,900 ​ — Balance at December 31, 2022 12,307,157 — ​ 12,307,157 ​ Common stock. Share repurchases and cancellations. million. During the second quarter of 2022, we acquired 78,900 shares of our Class A common stock for an aggregate amount of approximately $1.7 million under prior repurchase authorizations. Of these shares, 70,000 shares were purchased in a market transaction, and 8,900 shares were purchased from two of our affiliates in two separate private transactions that were also approved in advance by our independent directors. We cancelled these treasury shares and allocated their costs to common stock at par value and additional paid-in-capital. At December 31, 2022, 523,647 shares were available for purchase under these authorizations. Incentive compensation plan. Dividends.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Note 10 – Related party transactions: We may be deemed to be controlled by Ms. Lisa Simmons and the Family Trust. See Note 1. Corporations that may be deemed to be controlled by or affiliated with these individuals sometimes engage in (a) intercorporate transactions such as guarantees, management and expense sharing arrangements, shared fee arrangements, joint ventures, partnerships, loans, options, advances of funds on open account, and sales, leases and exchanges of assets, including securities issued by both related and unrelated parties and (b) common investment and acquisition strategies, business combinations, reorganizations, recapitalizations, securities repurchases, and purchases and sales (and other acquisitions and dispositions) of subsidiaries, divisions or other business units, which transactions have involved both related and unrelated parties and have included transactions that resulted in the acquisition by one related party of a publicly-held minority equity interest in another related party. We continuously consider, review and evaluate, and understand that Contran and related entities consider, review and evaluate such transactions. Depending upon the business, tax and other objectives then relevant, it is possible that we might be a party to one or more such transactions in the future. From time to time, we may have loans and advances outstanding between us and various related parties pursuant to term and demand notes. We generally enter into these loans and advances for cash management purposes. When we loan funds to related parties, we are generally able to earn a higher rate of return on the loan than we would earn if we invested the funds in other instruments. While certain of these loans may be of a lesser credit quality than cash equivalent instruments otherwise available to us, we believe we have evaluated the credit risks in the terms of the applicable loans. In this regard, prior to 2020, we entered into an unsecured revolving demand promissory note with Valhi under which, as amended, we have agreed to loan Valhi up to $25 million. Our loan to Valhi, as amended, bears interest at prime plus 1.00%, payable quarterly, with all principal due on demand, but in any event no earlier than December 31, 2024. Loans made to Valhi at any time under the agreement are at our discretion. At the end of our fiscal year in 2021 and 2022, the outstanding principal balance receivable from Valhi under the promissory note was $18.7 million and $13.2 million, respectively. Interest income (including unused commitment fees) on our loan to Valhi was $1.5 million in 2020, $1.2 million in 2021 and $1.0 million in 2022. Under the terms of an Intercorporate Service Agreement (“ISA”) with Contran, employees of Contran perform certain management, tax planning, financial, legal and administrative services for us on a fee basis. Such fees are based upon the compensation of individual Contran employees providing services for us and/or estimates of time devoted to our affairs by such persons. Because of the number of companies affiliated with Contran, we believe we benefit from cost savings and economies of scale gained by not having certain management, financial and administrative staffs duplicated at each entity, thus allowing certain individuals to provide services to multiple companies but only be compensated by one entity. We negotiate ISA fees annually and agreements renew quarterly. Fees pursuant to these agreements aggregated $3.4 million in each of 2020, 2021, and 2022. Contran and certain of its subsidiaries and affiliates, including us, purchase certain of their insurance policies and risk management services as a group, with the costs of the jointly-owned policies and services being apportioned among the participating companies. Tall Pines Insurance Company (“Tall Pines”), a subsidiary of Valhi, underwrites certain insurance policies for Contran and certain of its subsidiaries and affiliates, including us. Tall Pines purchases reinsurance from highly rated (as determined by A.M. Best or other internationally recognized ratings agency) third-party insurance carriers for substantially all of the risks it underwrites. Consistent with insurance industry practices, Tall Pines receives commissions from the reinsurance underwriters and/or assesses fees for certain of the policies that it underwrites. During 2020, 2021 and 2022 we paid $2.8 million, $2.9 million and $3.3 million, respectively under the group insurance program, which amounts principally represent insurance premiums, including $.7 million, $.9 million and $1.0 million, respectively, for policies written by Tall Pines. Amounts paid under the group insurance program also include payments to insurers or reinsurers for the reimbursement of claims within our applicable deductible or retention ranges that such insurers and reinsurers paid to third parties on our behalf, as well as amounts for claims and risk management services and various other third-party fees and expenses incurred by the program. We expect these relationships will continue in 2023. With respect to certain of such jointly-owned insurance policies, it is possible that unusually large losses incurred by one or more insureds during a given policy period could leave the other participating companies without adequate coverage under that policy for the balance of the policy period. As a result, and in the event that the available coverage under a particular policy would become exhausted by one or more claims, Contran and certain of its subsidiaries and affiliates, including us, have entered into a loss sharing agreement under which any uninsured loss arising because the available coverage had been exhausted by one or more claims will be shared ratably amongst those entities that had submitted claims under the relevant policy. We believe the benefits, in the form of reduced premiums and broader coverage associated with the group coverage for such policies, justifies the risk associated with the potential for any uninsured loss.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 11 – Legal proceedings Environmental matters and litigation Income taxes. We are a party to a tax sharing agreement with Contran and NL providing for the allocation of tax liabilities and tax payments as described in Note 1. Under applicable law, we, as well as every other member of the Contran Tax Group, are each jointly and severally liable for the aggregate federal income tax liability of Contran and the other companies included in the Contran Tax Group for all periods in which we are included in the Contran Tax Group. NL has agreed, however, to indemnify us for any liability for income taxes of the Contran Tax Group in excess of our tax liability in accordance with the tax sharing agreement. Concentration of credit risk

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Financial Instruments	Note 12 – ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ See Note 3 for information on how we determine the fair value of our marketable securities. ​ The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ December 31, 2022 ​ ​ Carrying ​ Fair ​ Carrying ​ Fair ​ amount value amount value ​ ​ (In thousands) Cash and cash equivalents ​ $ 76,579 ​ $ 76,579 ​ $ 26,748 ​ $ 26,748 Accounts receivable, net ​ 15,546 ​ 15,546 ​ 17,840 ​ 17,840 Accounts payable ​ 3,408 ​ 3,408 ​ 3,537 ​ 3,537 ​ Due to their near-term maturities, the carrying amounts of accounts receivable and accounts payable are considered equivalent to fair value.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Organization	Organization. Unless otherwise indicated, references in this report to “we,” “us,” or “our” refer to CompX International Inc. and its subsidiaries, taken as a whole.
Management Estimates	Management estimates.
Principles of Consolidation	Principles of consolidation .
Fiscal Year	Fiscal year.
Cash and Cash Equivalents	Cash and cash equivalents .
Marketable securities and securities transactions	Marketable securities and securities transactions. Fair Value Measurements and Disclosures ● Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; ● Level 2 – Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the assets or liability; and ● Level 3 – Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable. We classify our marketable debt securities as available-for-sale. We accumulate unrealized gains and losses on marketable debt securities as part of accumulated other comprehensive income (loss), net of related deferred income taxes. See Notes 3 and 12. We base realized gains and losses upon the specific identification of the securities sold.
Net Sales	Net sales . Revenue from Contracts with Customers, Revenue is recorded in an amount that reflects the net consideration we expect to receive in exchange for our products. Prices for our products are based on terms specified in published list prices and purchase orders, which generally do not include financing components, noncash consideration or consideration paid to our customers. As our standard payment terms are less than one year, we have elected the practical expedient under ASC 606 and we have not assessed whether a contract has a significant financing component. We state sales net of price, early payment and distributor discounts as well as volume rebates (collectively, variable consideration). Variable consideration, to the extent present, is not material and is recognized as the amount to which we are most-likely to be entitled, using all information (historical, current and forecasted) that is reasonably available to us, and only to the extent that a significant reversal in the amount of the cumulative revenue recognized is not probable of occurring in a future period. Differences, if any, between estimates of the amount of variable consideration to which we will be entitled and the actual amount of such variable consideration have not been material in the past. We occasionally receive partial or full consideration from our customers prior to the completion of our performance obligation (shipment of product). We record estimated deferred revenue on the amount to which we are most-likely to be entitled and deferred revenue is recognized into revenue as our performance obligation has been satisfied. Deferred revenue has not been material in the past. We report any tax assessed by a governmental authority that we collect from our customers that is both imposed on and concurrent with our revenue-producing activities (such as sales, use, value added and excise taxes) on a net basis (meaning we do not recognize these taxes either in our revenues or in our costs and expenses). Frequently, we receive orders for products to be delivered over dates that may extend across reporting periods. We invoice for each delivery upon shipment and recognize revenue for each distinct shipment when all sales recognition criteria for that shipment have been satisfied. As scheduled delivery dates for these orders are within a one year period, under the optional exemption provided by ASC 606, we do not disclose sales allocated to future shipments of partially completed contracts. We have determined that our disclosure of sales by segment meets the requirements to disclose a disaggregation of our sales into categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. See Note 2.
Accounts Receivable	Accounts receivable.
Inventories and Cost of Sales	Inventories and cost of sales .
Selling, General and Administrative Expenses; Advertising Costs	Selling, general and administrative expenses; advertising costs.
Goodwill	Goodwill.
Property and Equipment; Depreciation Expense	Property and equipment; depreciation expense . We perform impairment tests when events or changes in circumstances indicate the carrying value may not be recoverable. We consider all relevant factors. We perform the impairment test by comparing the estimated future undiscounted cash flows associated with the asset to the asset’s net carrying value to determine if impairment exists.
Leases	Leases. Leases
Employee Benefit Plans	Employee benefit plans.
Self-Insurance	Self-insurance.
Income Taxes	Income taxes . As a member of the Contran Tax Group, we are a party to a tax sharing agreement which provides that we compute our provision for U.S. income taxes on a separate-company basis. Pursuant to the tax sharing agreement, we make payments to or receive payments from NL in amounts we would have paid to or received from the U.S. Internal Revenue Service or the applicable state tax authority had we not been a member of the Contran Tax Group. The separate company provisions and payments are computed using the tax elections made by Contran. We made net cash payments for income taxes to NL of $3.2 million in 2020, $4.7 million in 2021 and $7.8 million in 2022. Deferred income tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the income tax and financial reporting carrying amounts of assets and liabilities. Deferred income tax assets and liabilities for each tax-paying jurisdiction in which we operate are netted and presented as either a noncurrent deferred income tax asset or liability, as applicable. We periodically evaluate our deferred tax assets in the various taxing jurisdictions in which we operate and adjust any related valuation allowance based on the estimate of the amount of deferred tax assets which we believe do not meet the more-likely-than-not recognition criteria. See Notes 8 and 11. We record a reserve for uncertain tax positions for tax positions where we believe it is more-likely-than-not our position will not prevail with the applicable tax authorities. We did not have a reserve for uncertain tax positions in 2020, 2021 or 2022.

Business and Geographic Segme_2

Business and Geographic Segments (Tables)	12 Months Ended
	Dec. 31, 2022
Segment Reporting [Abstract]
Schedule of Business Segment Information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years ended December 31, ​ ​ 2020 2021 2022 ​ ​ (In thousands) Net sales: ​ ​ ​ ​ Security Products ​ $ 87,863 ​ $ 105,124 ​ $ 114,519 Marine Components ​ 26,674 ​ 35,691 ​ 52,043 Total net sales ​ $ 114,537 ​ $ 140,815 ​ $ 166,562 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating income: ​ ​ ​ Security Products ​ $ 14,926 ​ $ 21,622 ​ $ 22,744 Marine Components ​ 4,088 ​ 5,591 ​ 9,561 Corporate operating expenses ​ (7,197) ​ (6,687) ​ (6,869) Total operating income ​ 11,817 ​ 20,526 ​ 25,436 Interest income ​ 1,680 ​ 1,197 ​ 1,877 Income before income taxes ​ $ 13,497 ​ $ 21,723 ​ $ 27,313 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Depreciation and amortization: ​ ​ ​ Security Products ​ $ 3,069 ​ $ 2,890 ​ $ 2,801 Marine Components ​ 757 ​ 940 ​ 1,167 Corporate ​ 1 ​ 9 ​ 9 Total ​ $ 3,827 ​ $ 3,839 ​ $ 3,977 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capital expenditures: ​ ​ ​ ​ ​ ​ Security Products ​ $ 1,252 ​ $ 1,044 ​ $ 2,015 Marine Components ​ 458 ​ 3,050 ​ 1,680 Corporate ​ 30 ​ — ​ — Total ​ $ 1,740 ​ $ 4,094 ​ $ 3,695 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net sales point of destination: ​ ​ ​ ​ ​ ​ United States ​ $ 107,712 ​ $ 129,160 ​ $ 153,982 Canada ​ 4,423 ​ 8,061 ​ 9,227 Mexico ​ 431 ​ 589 ​ 722 Other ​ 1,971 ​ 3,005 ​ 2,631 Total ​ $ 114,537 ​ $ 140,815 ​ $ 166,562 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2021 2022 ​ ​ (In thousands) Total assets: ​ ​ ​ Security Products ​ $ 70,755 ​ $ 78,193 ​ $ 80,671 Marine Components ​ 15,515 ​ 18,167 ​ 26,372 Corporate ​ 97,775 ​ 96,092 ​ 70,344 Total ​ $ 184,045 ​ $ 192,452 ​ $ 177,387 ​

Marketable Securities (Tables)

Marketable Securities (Tables)	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Schedule of marketable securities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized Unrealized ​ Market value cost basis loss, net ​ ​ (In thousands) December 31, 2021: ​ ​ ​ Current assets ​ $ — ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Current assets ​ $ 33,147 ​ $ 33,164 ​ $ (17) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Accounts Receivable, Net (Table

Accounts Receivable, Net (Tables)	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Schedule of Accounts Receivable, Net	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Accounts receivable, net: ​ ​ Security Products ​ $ 12,896 ​ $ 13,767 Marine Components ​ 2,720 ​ 4,143 Allowance for doubtful accounts ​ (70) ​ (70) Total accounts receivable, net ​ $ 15,546 ​ $ 17,840

Inventories, Net (Tables)

Inventories, Net (Tables)	12 Months Ended
	Dec. 31, 2022
Inventory Disclosure [Abstract]
Inventories, Net	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Raw materials: ​ ​ Security Products ​ $ 3,640 ​ $ 4,172 Marine Components ​ 1,402 ​ 2,073 Total raw materials ​ 5,042 ​ 6,245 Work-in-process: ​ ​ Security Products ​ 12,721 ​ 14,193 Marine Components ​ 4,046 ​ 5,790 Total work-in-process ​ 16,767 ​ 19,983 Finished goods: ​ ​ Security Products ​ 2,271 ​ 3,163 Marine Components ​ 1,562 ​ 1,899 Total finished goods ​ 3,833 ​ 5,062 Total inventories, net ​ $ 25,642 ​ $ 31,290

Accounts Payable and Accrued _2

Accounts Payable and Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2022
Payables And Accruals [Abstract]
Accounts Payable and Accrued Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Accounts payable: ​ ​ Security Products ​ $ 2,594 ​ $ 2,663 Marine Components ​ 814 ​ 874 Accrued liabilities: ​ ​ Employee benefits ​ 9,797 ​ 10,489 Taxes other than on income ​ 391 ​ 279 Customer tooling ​ 516 ​ 135 Advances from customers ​ ​ — ​ ​ 298 Insurance ​ 208 ​ 255 Deferred revenue ​ ​ — ​ ​ 243 Other ​ 404 ​ 382 Total accounts payable and accrued liabilities ​ $ 14,724 ​ $ 15,618

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Components of Pre-tax Income and Provision for Income Taxes	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years ended December 31, ​ ​ 2020 2021 2022 ​ ​ (In thousands) Provision for income taxes: ​ ​ ​ ​ Currently payable ​ $ 3,222 ​ $ 5,476 ​ $ 7,130 Deferred income tax benefit ​ (48) ​ (321) ​ (688) Total ​ $ 3,174 ​ $ 5,155 ​ $ 6,442 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Expected tax expense, at the U.S. federal statutory ​ $ 2,835 ​ $ 4,562 ​ $ 5,736 State income taxes ​ 378 ​ 692 ​ 827 FDII benefit ​ (55) ​ (120) ​ (144) Other, net ​ 16 ​ 21 ​ 23 Total provision for income taxes ​ $ 3,174 ​ $ 5,155 ​ $ 6,442 ​
Components of Net Deferred Tax Liability	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2021 2022 ​ ​ (In thousands) Tax effect of temporary differences related to: ​ ​ Inventories ​ $ 531 ​ $ 369 Property and equipment ​ (2,951) ​ (2,188) Accrued liabilities and other deductible differences ​ 39 ​ 51 Accrued employee benefits ​ 1,182 ​ 1,262 Goodwill ​ (1,693) ​ (1,693) Other taxable differences ​ (26) ​ (31) Total deferred tax liability ​ $ (2,918) ​ $ (2,230) ​

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Summary of Stockholders' Equity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shares of common stock ​ Issued Treasury ​ Outstanding ​ ​ ​ ​ ​ ​ Balance at December 31, 2019 12,443,057 — ​ 12,443,057 Issued 8,100 — ​ 8,100 Balance at December 31, 2020 12,451,157 — ​ 12,451,157 Issued 4,500 — ​ 4,500 Acquired ​ — ​ (75,000) ​ (75,000) Retired ​ (75,000) ​ 75,000 ​ — Balance at December 31, 2021 12,380,657 — ​ 12,380,657 Issued 5,400 — ​ 5,400 Acquired ​ — ​ (78,900) ​ (78,900) Retired ​ (78,900) ​ 78,900 ​ — Balance at December 31, 2022 12,307,157 — ​ 12,307,157 ​

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Carrying Value and Estimated Fair Value of Financial Instruments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ December 31, 2022 ​ ​ Carrying ​ Fair ​ Carrying ​ Fair ​ amount value amount value ​ ​ (In thousands) Cash and cash equivalents ​ $ 76,579 ​ $ 76,579 ​ $ 26,748 ​ $ 26,748 Accounts receivable, net ​ 15,546 ​ 15,546 ​ 17,840 ​ 17,840 Accounts payable ​ 3,408 ​ 3,408 ​ 3,537 ​ 3,537 ​

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Significant Accounting Policies [Line Items]
Defined contribution plan expense	$ 3.9	$ 3.7	$ 3
Income tax payments to NL	$ 7.8	$ 4.7	$ 3.2
Minimum | Building
Schedule Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	15 years
Minimum | Equipment and software
Schedule Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	3 years
Maximum | Building
Schedule Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	40 years
Maximum | Equipment and software
Schedule Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	20 years
N L Industries [Member] | Comp X International Inc [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of ownership held by parent company	87%
Valhi Inc [Member] | N L Industries [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of ownership held by parent company	83%
Contran Corporation [Member] | Valhi Inc [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of ownership held by parent company	92%

Business and Geographic Segme_3

Business and Geographic Segments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2022 segment
Segment Reporting [Abstract]
Number of reportable operating segments	2

Business and Geographic Segme_4

Business and Geographic Segments - Schedule of Business Segment Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net sales:
Total net sales	$ 166,562	$ 140,815	$ 114,537
Operating income (loss):
Total operating income	25,436	20,526	11,817
Interest income	1,877	1,197	1,680
Income before income taxes	27,313	21,723	13,497
Depreciation and amortization	3,977	3,839	3,827
Total capital expenditures	3,695	4,094	1,740
Operating Segments | Security Products
Net sales:
Total net sales	114,519	105,124	87,863
Operating income (loss):
Total operating income	22,744	21,622	14,926
Depreciation and amortization	2,801	2,890	3,069
Total capital expenditures	2,015	1,044	1,252
Operating Segments | Marine Components
Net sales:
Total net sales	52,043	35,691	26,674
Operating income (loss):
Total operating income	9,561	5,591	4,088
Depreciation and amortization	1,167	940	757
Total capital expenditures	1,680	3,050	458
Corporate
Operating income (loss):
Total operating income	(6,869)	(6,687)	(7,197)
Depreciation and amortization	$ 9	$ 9	1
Total capital expenditures			$ 30

Business and Geographic Segme_5

Business and Geographic Segments - Business Segment Information by Geographical Areas (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 166,562	$ 140,815	$ 114,537
Total assets	177,387	192,452	184,045
Operating Segments [Member] | Security Products [Member]
Segment Reporting Information [Line Items]
Net sales	114,519	105,124	87,863
Total assets	80,671	78,193	70,755
Operating Segments [Member] | Marine Components
Segment Reporting Information [Line Items]
Net sales	52,043	35,691	26,674
Total assets	26,372	18,167	15,515
Corporate
Segment Reporting Information [Line Items]
Total assets	70,344	96,092	97,775
Point Of Destination | United States
Segment Reporting Information [Line Items]
Net sales	153,982	129,160	107,712
Point Of Destination | Canada
Segment Reporting Information [Line Items]
Net sales	9,227	8,061	4,423
Point Of Destination | Mexico
Segment Reporting Information [Line Items]
Net sales	722	589	431
Point Of Destination | Other
Segment Reporting Information [Line Items]
Net sales	$ 2,631	$ 3,005	$ 1,971

Marketable Securities (Details)

Marketable Securities (Details) - Current assets $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Marketable securities
Market value	$ 33,147
Amortized cost basis	33,164
Unrealized loss, net	$ (17)

Accounts Receivable, Net - Sche

Accounts Receivable, Net - Schedule of Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (70)	$ (70)
Total accounts receivable, net	17,840	15,546
Security Products
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, gross	13,767	12,896
Marine Components
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, gross	$ 4,143	$ 2,720

Inventories, Net - Inventories,

Inventories, Net - Inventories, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Inventory [Line Items]
Total raw materials	$ 6,245	$ 5,042
Total work-in-process	19,983	16,767
Total finished goods	5,062	3,833
Total inventories, net	31,290	25,642
Security Products
Inventory [Line Items]
Total raw materials	4,172	3,640
Total work-in-process	14,193	12,721
Total finished goods	3,163	2,271
Marine Components
Inventory [Line Items]
Total raw materials	2,073	1,402
Total work-in-process	5,790	4,046
Total finished goods	$ 1,899	$ 1,562

Goodwill - Additional Informati

Goodwill - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill impairment charge	$ 0	$ 0	$ 0
Goodwill, gross	33,600,000
Goodwill	23,742,000	23,742,000
Increase (decrease) in carrying amount of goodwill	$ 0	$ 0	$ 0
Marine Components
Goodwill [Line Items]
Goodwill impairment charge				$ 9,900,000

Accounts Payable and Accrued _3

Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accrued liabilities:
Employee benefits	$ 10,489	$ 9,797
Taxes other than on income	279	391
Customer tooling	135	516
Advances from customers	298
Insurance	255	208
Deferred revenue	243
Other	382	404
Total accounts payable and accrued liabilities	15,618	14,724
Security Products
Accounts payable:
Accounts payable	2,663	2,594
Marine Components
Accounts payable:
Accounts payable	$ 874	$ 814

Income Taxes - Provision for In

Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Provision for income taxes:
Currently payable	$ 7,130	$ 5,476	$ 3,222
Deferred income tax benefit	(688)	(321)	(48)
Total provision for income taxes	6,442	5,155	3,174
Expected tax expense, at the U.S. federal statutory income tax rate of 21%	5,736	4,562	2,835
State income taxes	827	692	378
FDII benefit	144	120	55
Other, net	23	21	16
Total provision for income taxes	$ 6,442	$ 5,155	$ 3,174

Income Taxes - Provision for _2

Income Taxes - Provision for Income Taxes (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	21%	21%	21%

Income Taxes - Components of Ne

Income Taxes - Components of Net Deferred Tax Liability (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Inventories	$ 369	$ 531
Property and equipment	(2,188)	(2,951)
Accrued liabilities and other deductible differences	51	39
Accrued employee benefits	1,262	1,182
Goodwill	(1,693)	(1,693)
Other taxable differences	(31)	(26)
Total deferred tax liability	$ (2,230)	$ (2,918)

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stockholders' Equity (Detail) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class Of Stock Disclosures [Abstract]
Common stock, shares issued, beginning balance	12,380,657	12,451,157	12,443,057
Common stock, shares outstanding, beginning balance	12,380,657	12,451,157	12,443,057
Issued	5,400	4,500	8,100
Acquired	(78,900)	(75,000)	0	0
Acquired, Outstanding	(78,900)	(75,000)
Retired, Issued	(78,900)	(75,000)
Retired	78,900	75,000
Common stock, shares issued, ending balance	12,307,157	12,380,657	12,451,157	12,443,057
Common stock, shares outstanding, ending balance	12,307,157	12,380,657	12,451,157	12,443,057

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Millions	3 Months Ended			12 Months Ended
	Jun. 30, 2022 USD ($) item shares	Dec. 31, 2021 shares	Mar. 31, 2021 shares	Dec. 31, 2022 $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 $ / shares shares	Dec. 31, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock purchases				78,900	75,000	0	0
Preferred stock, shares authorized		1,000		1,000	1,000
Purchase of common shares				78,900	75,000
Shares available for purchase				523,647
Common Stock Dividend declared by directors | $ / shares				$ 0.25	$ 0.20	$ 0.10
Special cash dividends per share | $ / shares				$ 1.75
Shares Repurchased in Market Transaction
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common shares	70,000
Shares Repurchased from Affiliates
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common shares	8,900
Number of affiliates | item	2
Number of private transactions | item	2
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized		20,000,000		20,000,000	20,000,000
Purchase of common shares	78,900	25,000	50,000		75,000
Purchase of common shares value | $	$ 1.7				$ 1.3
Class A Common Stock | 2013 Director Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for award				131,050
Class A Common Stock | Non-Employee | 2013 Director Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares authorized to be issued under the plan				200,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Note receivable from affiliate	$ 13,200,000	$ 18,700,000
Contran Corporation [Member] | Intercorporate Services Agreements Fees
Related Party Transaction [Line Items]
Related party transaction expense	3,400,000	3,400,000	$ 3,400,000
Tall Pines Insurance Company or EWI RE Inc
Related Party Transaction [Line Items]
Related party transaction expense	3,300,000	2,900,000	2,800,000
Tall Pines Insurance Company or EWI RE Inc | Policies Written by Tall Pines Insurance Company
Related Party Transaction [Line Items]
Related party transaction expense	1,000,000	900,000	700,000
Unsecured Revolving Demand Promissory | Valhi Inc
Related Party Transaction [Line Items]
Maximum loan amount				$ 25,000,000
Interest rate on loans repayment				1%
Principal due on demand effective date				Dec. 31, 2024
Note receivable from affiliate	13,200,000	18,700,000
Interest income including unused commitment fees on our loan	$ 1,000,000	$ 1,200,000	$ 1,500,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - Customer Concentration Risk - Consolidated Sales - customer	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Ten Largest Customers
Concentration Risk [Line Items]
Number of customers accounted for sale	10
Sales Revenue, percentage	52%	51%	48%
Customer One | Security Products [Member]
Concentration Risk [Line Items]
Number of customers accounted for sale	1
Sales Revenue, percentage	14%	16%	17%
Customer One | Marine Components
Concentration Risk [Line Items]
Number of customers accounted for sale	1
Sales Revenue, percentage	12%

Financial Instruments - Carryin

Financial Instruments - Carrying Value and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 26,748	$ 76,579
Accounts receivable, net	17,840	15,546
Accounts payable	3,537	3,408
Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents	26,748	76,579
Accounts receivable, net	17,840	15,546
Accounts payable	$ 3,537	$ 3,408