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Subsequent Events (Details)				3 Months Ended	9 Months Ended
	Oct. 16, 2020 USD ($) $ / shares	Oct. 13, 2020 USD ($) $ / shares	Oct. 08, 2020 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 item $ / shares	Dec. 31, 2019 $ / shares
Subsequent Event [Line Items]
Par value | $ / shares					$ 0.01	$ 0.01
Oustanding Common stock fully-diluted		23.00%
Number of renewal options | item					2
Extension term					5 years
Siena Loan Agreement [Member]
Subsequent Event [Line Items]
Availability limit			85.00%
Market value of inventory			50.00%
Liquidation value			85.00%
FCA-Fasemex, LLC [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross	$ 173,000
Shares issued	$ 2,257,234
FCA-Fasemex, LLC [Member] | FreightCar North America [Member]
Subsequent Event [Line Items]
Joint Venture Ownership Percentage					50.00%
Subsequent Event [Member]
Subsequent Event [Line Items]
Par value | $ / shares		$ 0.01
Covenant	5.00%
Extension term			1 month
Subsequent Event [Member] | Siena Loan Agreement [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity			$ 20,000,000
Subsequent Event [Member] | Term Loan Credit Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount		$ 40,000,000
Term		5 years
Subsequent Event [Member] | FCA-Fasemex, LLC [Member]
Subsequent Event [Line Items]
Percent acquired	50.00%
Par value | $ / shares	$ 0.01
Scenario, Forecast [Member]
Subsequent Event [Line Items]
Gain related to lease termination				$ 15,000,000
Base Rate [Member] | Subsequent Event [Member] | Siena Loan Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.00%

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