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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Taxes [Abstract] |
Composition of Income Tax Expense |
|  |  |  |  |  | Year Ended December 31
|  |  |  |  |  | 2020 |  |  | 2019
Current Tax Expense/(Benefit) |  |  |  |  |  |
Federal |  |  |  |  | $ | (92) |  | $ | (12)
Foreign |  |  |  |  |  | 137 |  |  | -
State |  |  |  |  |  | 17 |  |  | 42
|  |  |  |  |  | 62 |  |  | 30
Deferred Tax Expense/(Benefit) |  |  |  |  |  |
Federal |  |  |  |  |  | 1 |  |  | 386
Foreign |  |  |  |  |  | 136 |  |  | -
State |  |  |  |  |  | - |  |  | (210)
|  |  |  |  |  | 137 |  |  | 176
Tax benefit related to a decrease in unrecognized tax benefits |  | - |  |  | (221)
Interest expense, gross of related tax effects |  | - |  |  | (100)
Total |  |  |  |  | $ | 199 |  | $ | (115)
Reconciliation of Income Tax Rate |
|  |  |  |  | Year Ended December 31
|  |  |  |  | 2020 |  | 2019
Statutory U.S. federal income tax rate | 21.0% |  | 21.0%
State income taxes, net of federal tax benefit | 3.9% |  | 2.9%
Valuation allowance | (23.5)% |  | (20.1)%
Foreign rate differential | (0.1)% |  | 0.0%
State rate and other changes on deferred taxes | (0.4)% |  | (1.1)%
Federal and state tax credits | 0.1% |  | 0.1%
Uncertain tax positions | 0.0% |  | 1.7%
Nondeductible expenses and other | (1.4)% |  | (4.3)%
Effective income tax rate | (0.4)% |  | 0.2%
Components of Deferred Tax Assets and Liabilities |
|  |  |  |  |  |  |  |  | December 31, 2020 |  |  | December 31, 2019
Description |  |  |  |  | Assets |  |  | Liabilities |  |  | Assets |  |  | Liabilities
Accrued post-retirement and pension benefits | $ | 1,663 |  | $ | - |  | $ | 1,541 |  | $ | -
Intangible assets |  | - |  |  | (17) |  |  | - |  |  | (13)
Accrued expenses |  | 2,027 |  |  | - |  |  | 3,370 |  |  | -
Deferred state and local incentive revenue |  | 1,132 |  |  | - |  |  | 1,780 |  |  | -
Inventory valuation |  | 3,145 |  |  | - |  |  | 2,071 |  |  | -
Property, plant and equipment and railcars on operating leases |  | - |  |  | (2,018) |  |  | - |  |  | (6,295)
Net operating loss and tax credit carryforwards |  | 48,738 |  |  | - |  |  | 34,078 |  |  | -
Stock-based compensation expense |  | 1,127 |  |  | - |  |  | 1,152 |  |  | -
Other |  | 1,135 |  |  | - |  |  | - |  |  | (1,028)
Right of use asset |  | - |  |  | (5,543) |  |  | - |  |  | (14,193)
Lease liability |  | 8,086 |  |  | - |  |  | 17,326 |  |  | -
|  |  |  |  |  |  |  |  | 67,053 |  |  | (7,578) |  |  | 61,318 |  |  | (21,529)
Valuation Allowance |  |  |  |  |  | (59,613) |  |  | - |  |  | (39,792) |  |  | -
Deferred tax assets (liabilities) | $ | 7,440 |  | $ | (7,578) |  | $ | 21,526 |  | $ | (21,529)
Increase (decrease) in valuation allowance | $ | 19,821 |  |  |  |  | $ | 15,342 |  |  |
Income Tax Years Subject to Examination |
Jurisdiction |  |  |  |  |  |  |  |  |  |  | Earliest Year
U.S. Federal |  |  |  |  |  |  |  |  |  |  | 2018
States: |  |  |  |  |  |  |  |  |  |  |
Pennsylvania |  |  |  |  |  |  |  |  |  |  | 2001
Texas |  |  |  |  |  |  |  |  |  |  | 2018
Illinois |  |  |  |  |  |  |  |  |  |  | 2010
Virginia |  |  |  |  |  |  |  |  |  |  | 2017
Colorado |  |  |  |  |  |  |  |  |  |  | 2010
Indiana |  |  |  |  |  |  |  |  |  |  | 2017
Nebraska |  |  |  |  |  |  |  |  |  |  | 2016
Alabama |  |  |  |  |  |  |  |  |  |  | 2016
Foreign: |  |  |  |  |  |  |  |  |  |  |
China |  |  |  |  |  |  |  |  |  |  | 2017
Mexico |  |  |  |  |  |  |  |  |  |  | 2020

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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