Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net sales:
Net sales	$ 99,226	$ 110,025
Total net sales	104,265	110,215
Operating costs and expenses:
Costs of products sold (excluding depreciation and amortization)	82,104	92,490
Selling and administrative	13,659	12,973
Depreciation and amortization	4,636	4,670
Loss on disposal of assets	16
Total operating costs and expenses	100,415	110,133
Income from operations	3,850	82
Other expense - net:
Interest expense	(2,726)	(2,757)
Other income - net	826	923
Total other expense - net	(1,900)	(1,834)
Income (loss) before income taxes	1,950	(1,752)
Income tax provision	(59)	(454)
Net income (loss)	1,891	(2,206)
Less: Net income attributable to noncontrolling interest	749	511
Net income (loss) attributable to Ampco-Pittsburgh	$ 1,142	$ (2,717)
Net income (loss) per share attributable to Ampco-Pittsburgh common shareholders:
Basic	$ 0.06	$ (0.14)
Diluted	$ 0.06	$ (0.14)
Weighted-average number of common shares outstanding:
Basic	19,980	19,729
Diluted	20,167	19,729
Related Party [Member]
Net sales:
Net sales to related parties	$ 5,039	$ 190