Change in Method of Accounting for Inventory Valuation (Tables)

12 Months Ended

Dec. 31, 2022

Change in Accounting Estimate [Line Items]

Schedule of Consolidated Statement of Operations

The following tables present the consolidated financial statement line items as of and for the year ended December 31, 2022, as if the Corporation had not changed its method of accounting for its domestic inventories from the LIFO method to the FIFO method:

Consolidated Statement of Operations

	Year Ended December 31, 2022
	As reported - FIFO		Effect of Change			If adjusted - LIFO
Costs of products sold (excluding depreciation and amortization)	$	327,996	$	2,763		$	330,759
Total operating costs and expenses		387,411		2,763			390,174
Income from operations		2,778		(2,763	)		15
Income before income taxes		5,556		(2,763	)		2,793
Net income		3,980		(2,763	)		1,217
Net income attributable to Ampco-Pittsburgh		3,416		(2,763	)		653
Net income per basic share attributable to Ampco-Pittsburgh common shareholders	$	0.18		(0.14	)	$	0.04
Net income per diluted share attributable to Ampco-Pittsburgh common shareholders	$	0.18		(0.14	)	$	0.04

Consolidated Statement of Operations

	Year Ended December 31, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO
Costs of products sold (excluding depreciation and amortization)	$	287,639		$	(8,834	)	$	278,805
Total operating costs and expenses		358,536			(8,834	)		349,702
Loss from operations		(13,616	)		8,834			(4,782	)
Loss before income taxes		(9,829	)		8,834			(995	)
Net loss		(12,134	)		8,834			(3,300	)
Net loss attributable to Ampco-Pittsburgh		(12,695	)		8,834			(3,861	)
Net loss per basic share attributable to Ampco-Pittsburgh common shareholders	$	(0.67	)		0.47		$	(0.20	)
Net loss per diluted share attributable to Ampco-Pittsburgh common shareholders	$	(0.67	)		0.47		$	(0.20	)

Unaudited Condensed Consolidated Statements of Operations

	Three Months Ended March 31, 2022								Three Months Ended March 31, 2021
	As originally reported - LIFO		Effect of Change			As adjusted - FIFO			As originally reported - LIFO		Effect of Change			As adjusted - FIFO
Costs of products sold (excluding depreciation and amortization)	$	78,820	$	1,696		$	80,516		$	69,588	$	432		$	70,020
Total operating costs and expenses		93,183		1,696			94,879			85,893		432			86,325
Income (loss) from operations		1,243		(1,696	)		(453	)		907		(432	)		475
Income (loss) before income taxes		1,665		(1,696	)		(31	)		695		(432	)		263
Net income (loss)		1,609		(1,696	)		(87	)		314		(432	)		(118	)
Net income (loss) attributable to Ampco-Pittsburgh		1,645		(1,696	)		(51	)		167		(432	)		(265	)
Net income (loss) per basic share attributable to Ampco-Pittsburgh common shareholders	$	0.09		(0.09	)	$	(0.00	)	$	0.01		(0.02	)	$	(0.01	)
Net income (loss) per diluted share attributable to Ampco-Pittsburgh common shareholders	$	0.08		(0.08	)	$	(0.00	)	$	0.01		(0.02	)	$	(0.01	)

	Three Months Ended June 30, 2022								Three Months Ended June 30, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO		As originally reported - LIFO		Effect of Change			As adjusted - FIFO
Costs of products sold (excluding depreciation and amortization)	$	87,487		$	(2,404	)	$	85,083	$	75,433	$	(2,391	)	$	73,042
Total operating costs and expenses		102,902			(2,404	)		100,498		91,959		(2,391	)		89,568
(Loss) income from operations		(320	)		2,404			2,084		469		2,391			2,860
Income before income taxes		911			2,404			3,315		2,596		2,391			4,987
Net income		522			2,404			2,926		1,224		2,391			3,615
Net income attributable to Ampco-Pittsburgh		403			2,404			2,807		1,063		2,391			3,454
Net income per basic share attributable to Ampco-Pittsburgh common shareholders	$	0.02			0.13		$	0.15	$	0.06		0.12		$	0.18
Net income per diluted share attributable to Ampco-Pittsburgh common shareholders	$	0.02			0.12		$	0.14	$	0.05		0.11		$	0.16
	Six Months Ended June 30, 2022								Six Months Ended June 30, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO		As originally reported - LIFO		Effect of Change			As adjusted - FIFO
Costs of products sold (excluding depreciation and amortization)	$	166,307		$	(708	)	$	165,599	$	145,021	$	(1,959	)	$	143,062
Total operating costs and expenses		196,085			(708	)		195,377		177,852		(1,959	)		175,893
Income from operations		923			708			1,631		1,376		1,959			3,335
Income before income taxes		2,576			708			3,284		3,291		1,959			5,250
Net income		2,131			708			2,839		1,538		1,959			3,497
Net income attributable to Ampco-Pittsburgh		2,048			708			2,756		1,230		1,959			3,189
Net income per basic share attributable to Ampco-Pittsburgh common shareholders	$	0.11			0.03		$	0.14	$	0.07		0.10		$	0.17
Net income per diluted share attributable to Ampco-Pittsburgh common shareholders	$	0.11			0.03		$	0.14	$	0.06		0.09		$	0.15

	Three Months Ended September 30, 2022								Three Months Ended September 30, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO		As originally reported - LIFO			Effect of Change			As adjusted - FIFO
Costs of products sold (excluding depreciation and amortization)	$	84,378		$	(277	)	$	84,101	$	67,990		$	(1,979	)	$	66,011
Total operating costs and expenses		99,721			(277	)		99,444		83,546			(1,979	)		81,567
(Loss) income from operations		(74	)		277			203		(2,361	)		1,979			(382	)
Income (loss) before income taxes		2,121			277			2,398		(1,175	)		1,979			804
Net income (loss)		1,134			277			1,411		(1,466	)		1,979			513
Net income (loss) attributable to Ampco-Pittsburgh		846			277			1,123		(1,589	)		1,979			390
Net income (loss) per basic share attributable to Ampco-Pittsburgh common shareholders	$	0.04			0.02		$	0.06	$	(0.08	)		0.10		$	0.02
Net income (loss) per diluted share attributable to Ampco-Pittsburgh common shareholders	$	0.04			0.02		$	0.06	$	(0.08	)		0.10		$	0.02
	Nine Months Ended September 30, 2022								Nine Months Ended September 30, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO		As originally reported - LIFO			Effect of Change			As adjusted - FIFO
Costs of products sold (excluding depreciation and amortization)	$	250,685		$	(985	)	$	249,700	$	213,011		$	(3,938	)	$	209,073
Total operating costs and expenses		295,806			(985	)		294,821		261,398			(3,938	)		257,460
Income (loss) from operations		849			985			1,834		(985	)		3,938			2,953
Income before income taxes		4,697			985			5,682		2,116			3,938			6,054
Net income		3,265			985			4,250		72			3,938			4,010
Net income (loss) attributable to Ampco-Pittsburgh		2,894			985			3,879		(359	)		3,938			3,579
Net income (loss) per basic share attributable to Ampco-Pittsburgh common shareholders	$	0.15			0.05		$	0.20	$	(0.02	)		0.21		$	0.19
Net income (loss) per diluted share attributable to Ampco-Pittsburgh common shareholders	$	0.15			0.05		$	0.20	$	(0.02	)		0.20		$	0.18

Schedule of Consolidated Balance Sheet

Consolidated Balance Sheet

	As of December 31, 2022
	As reported - FIFO			Effect of Change			If adjusted - LIFO
Inventories	$	121,739		$	(23,282	)	$	98,457
Total current assets		231,408			(23,282	)		208,126
Deferred income tax assets		2,141			191			2,332
Total assets		502,774			(23,091	)		479,683
Retained deficit		(32,322	)		(23,091	)		(55,413	)
Total liabilities and shareholders' equity		502,774			(23,091	)		479,683

Consolidated Balance Sheet

	As of December 31, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO
Inventories	$	88,198		$	20,519		$	108,717
Total current assets		188,297			20,519			208,816
Deferred tax assets		2,176			(191	)		1,985
Total assets		485,632			20,328			505,960
Retained deficit		(56,066	)		20,328			(35,738	)
Total liabilities and shareholders' equity		485,632			20,328			505,960

Schedule of Consolidated Statement of Cash Flow

Consolidated Statement of Cash Flows

	Year Ended December 31, 2022
	As reported - FIFO			Effect of Change			If adjusted - LIFO
Net income	$	3,980		$	(2,763	)	$	1,217
Non-cash provisions - net	$	(2,215	)	$	893			(1,322	)
Changes in assets/liabilities:
Inventories		(17,903	)		1,870			(16,033	)

Consolidated Statement of Cash Flows

	Year Ended December 31, 2021
	As originally reported - LIFO			Effect of Change			As adjusted - FIFO
Net loss	$	(12,134	)	$	8,834		$	(3,300	)
Non-cash provisions - net	$	1,809		$	384		$	2,193
Changes in assets/liabilities:
Inventories		(18,400	)		(9,218	)		(27,618	)