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Income Taxes (Tables)
12 Months Ended
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