(Loss) Earnings Per Share (Narrative) (Details)		3 Months Ended		9 Months Ended
(Loss) Earnings Per Share (Narrative) (Details)	Sep. 02, 2025 USD ($)	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($) shares	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($) shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive common shares excluded from computation of earnings per share amount \| shares		2,288,859	2,058,180	2,285,159	3,119,672
Participating Preferred Stock		$ 0	$ 4,676,000	$ 0	$ 13,340,000
Stock holder Rights Plan Percentage Of Beneficial Interest Needed	15.00%
Shareholder Rights Plan Description	The Rights will initially trade with and will be inseparable from common stock. The Rights will not be exercisable until: i) 10 business days after the public announcement that a person or group has become an “Acquiring Person” by obtaining beneficial ownership of 15% or more of the Company’s outstanding common stock (or 20% or more in the case of a person or group that is entitled to file, and does file, a Schedule 13G (a “13G Investor”)); or ii) 10 business days after a person or group begins or announces a tender or exchange offer which, if completed, would result in that person or group becoming an Acquiring Person. The Rights will expire on August 5, 2026, unless the Expiration Date is advanced or extended or unless the Rights are earlier redeemed or exchanged by the Company.
Schedule 13G [Member] \| Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock holder Rights Plan Percentage Of Beneficial Interest Needed	20.00%
Equity Unit Purchase Agreements [Member] \| Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Purchase Price Of The Preferred Stock	42

FreightCar America, Inc. 10-Q