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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of provision for income taxes
   Years Ended December 31, 
   2021   2020   2019 
Current provision (benefit)  $1,469   $
   $(22)
Deferred provision (benefit)   
    (17)   2 
Total  $1,469   $(17)  $(20)

 

Schedule of reconciliation of effective tax rate
   Years Ended December 31, 
   2021   2020   2019 
Statutory rate   21.0%   21.0%   21.0%
State income taxes, net of federal benefit   6.0    5.7    5.7 
Change in valuation allowance   (18.8)   (9.4)   (22.4)
Income from loan forgiveness   (5.5)   
    
 
Fair value adjustments   
    (12.7)   
 
Noncontrolling interest   
    (3.4)   (3.3)
Non-deductible items   0.4    (0.4)   (0.1)
Other   (0.1)   (0.8)   (1.0)
Effective rate   3.0%   (0.0)%   (0.1)%

 

Schedule of components of deferred income taxes
   December 31, 
   2021   2020 
Deferred tax assets:        
Net operating loss carryforwards  $46,159   $61,208 
Capital loss   28,640    29,684 
Disallowed interest   1,059    6,255 
R&D, Energy and AMT credits   3,742    3,864 
Pension liability   2,189    3,235 
Railcar contracts   618    302 
Stock-based compensation   479    441 
Allowance for doubtful accounts and other assets   367    461 
Other   2,646    1,963 
Total deferred tax assets   85,899    107,413 
           
Deferred tax liabilities:          
Property and equipment   (8,896)   (16,243)
Intangibles   (749)   (749)
Derivatives   (606)   (4,497)
Other   (300)   (472)
Total deferred tax liabilities   (10,551)   (21,961)
           
Valuation allowance   (75,584)   (85,688)
Net deferred tax liabilities, included in other liabilities  $(236)  $(236)

 

Schedule of net operating loss carryforwards
Tax Years  Federal   State 
2022–2026  $3,831   $3,374 
2027–2031   16,289    76,288 
2032–2036   55,671    24,796 
2037 and after*   92,929    69,367 
Total NOLs  $168,720   $173,825 

 

*Includes indefinite life federal net operating losses of $80.7 million generated after 2017.

 

Schedule of income tax in the United States jurisdiction and various state jurisdictions
Jurisdiction  Tax Years
    
Federal  2018 – 2020
Alabama  2018 – 2020
Arizona  2017 – 2020
Arkansas  2018 – 2020
California  2017 – 2020
Colorado  2017 – 2020
Connecticut  2018 – 2020
Georgia  2018 – 2020
Idaho  2018 – 2020
Illinois  2018 – 2020
Indiana  2018 – 2020
Iowa  2018 – 2020
Kansas  2018 – 2020
Louisiana  2018 – 2020
Michigan  2018 – 2020
Minnesota  2018 – 2020
Mississippi  2018 – 2020
Missouri  2018 – 2020
Nebraska  2018 – 2020
New Mexico  2018 – 2020
Oklahoma  2018 – 2020
Oregon  2018 – 2020
Pennsylvania  2018 – 2020
Rhode Island  2018 – 2020
South Carolina  2018 – 2020
Tennessee  2018 – 2020
Texas  2017 – 2020