Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net sales:
Net sales	$ 110,025	$ 102,383
Total net sales	110,215	104,803
Operating costs and expenses:
Costs of products sold (excluding depreciation and amortization)	92,490	86,372
Selling and administrative	12,973	12,187
Depreciation and amortization	4,670	4,374
Gain on disposal of assets		(123)
Total operating costs and expenses	110,133	102,810
Income from operations	82	1,993
Other expense - net:
Investment-related income	19	9
Interest expense	(2,757)	(2,071)
Other income - net	904	1,367
Total other expense - net	(1,834)	(695)
(Loss) Income before income taxes	(1,752)	1,298
Income tax provision	(454)	(313)
Net (loss) income	(2,206)	985
Less: Net income attributable to noncontrolling interest	511	309
Net (loss) income attributable to Ampco-Pittsburgh	$ (2,717)	$ 676
Net (loss) income per share attributable to Ampco-Pittsburgh common shareholders:
Basic	$ (0.14)	$ 0.03
Diluted	$ (0.14)	$ 0.03
Weighted-average number of common shares outstanding:
Basic	19,729	19,404
Diluted	19,729	19,404
Related Party [Member]
Net sales:
Net sales to related parties	$ 190	$ 2,420