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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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