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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Railcars Available for Lease, Useful Life	40 years
Research and Development Expense	$ 955,000	$ 42,000
Goodwill, Impairment Loss	21,521,000
Increase (decrease) in valuation allowance	15,342,000	$ 18,187,000
Contract assets	0
Contract liability	5,607,000
Performance obligation	104,100,000
Assets	$ 56,507,000
Fasemex [Member]
Ownership interest	50.00%
Future capital contributions	$ 25,000,000
Maximum [Member]
Warranty period	7 years
Useful life of assets related to state and local incentives	16 years
Maximum [Member] | Railcar Sales [Member]
Contract payment term	10 days
Maximum [Member] | Parts Sales [Member]
Contract payment term	45 days
Minimum [Member]
Useful life of assets related to state and local incentives	7 years
Minimum [Member] | Railcar Sales [Member]
Contract payment term	5 days
Minimum [Member] | Parts Sales [Member]
Contract payment term	30 days
Manufacturing [Member] | Valuation, Income Approach [Member]
Goodwill, Impairment Loss	$ 21,521,000
Weighted-average cost of capital	16.00%

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