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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of provision for income taxes
   Years Ended December 31, 
   2022   2021   2020 
Current provision (benefit)  $1,925   $1,469   $
 
Deferred provision (benefit)   
    
    (17)
Total  $1,925   $1,469   $(17)

 

Schedule of reconciliation of effective tax rate
   Years Ended December 31, 
   2022   2021   2020 
Statutory rate   21.0%   21.0%   21.0%
State income taxes, net of federal benefit   5.8    6.0    5.7 
Change in valuation allowance   (33.9)   (18.8)   (9.4)
Stock-based compensation   3.1    
    
 
Non-deductible items   (1.6)   0.4    (0.4)
Income from loan forgiveness   
    (5.5)   
 
Fair value adjustments   
    
    (12.7)
Noncontrolling interest   
    
    (3.4)
Other   0.6    (0.1)   (0.8)
Effective rate   (5.0)%   3.0%   (0.0)%

 

Schedule of components of deferred income taxes
   December 31, 
   2022   2021 
Deferred tax assets:        
Net operating loss carryforwards  $58,131   $46,159 
Capital loss   26,043    28,640 
Disallowed interest   2,395    1,059 
R&D, Energy and AMT credits   3,742    3,742 
Pension liability   1,354    2,189 
Railcar contracts   786    618 
Stock-based compensation   634    479 
Derivatives   460    
 
Allowance for credit losses and other assets   311    367 
Intangibles   89    
 
Other   3,208    2,646 
Total gross deferred tax assets   97,153    85,899 
Less: valuation allowance   (87,949)   (75,584)
Total deferred tax assets, net of valuation allowance   9,204    10,315 
           
Deferred tax liabilities:          
Property and equipment   (9,125)   (8,896)
Intangibles   
    (749)
Derivatives   
    (606)
Other   (315)   (300)
Total deferred tax liabilities   (9,440)   (10,551)
           
Net deferred tax liabilities, included in other liabilities  $(236)  $(236)

 

Schedule of net operating loss carryforwards
Tax Years  Federal   State 
2023–2027  $
   $47,896 
2028–2032   15,245    72,150 
2033–2037   83,771    33,449 
2038 and after*   108,086    79,675 
Total NOLs  $207,102   $233,170 

 

Schedule of balance of gross unrecognized tax benefits, before interest and penalties
   December 31, 
   2022   2021 
Unrecognized tax benefits at beginning of year  $   $
 
Increases related to current year tax positions   
    
 
Decreases related to current year tax positions   
    
 
Increases related to prior year tax positions   739    
 
Decreases related to prior year tax positions   
    
 
Decreases related to expiration of prior year tax positions   
    
 
Decreases related to settlements of prior year tax positions          
Unrecognized tax benefits at end of year  $739   $ 

 

Schedule of income tax in the United States jurisdiction and various state jurisdictions
Jurisdiction   Tax Years
     
Federal   2019 – 2021
Alabama   2019 – 2021
Arizona   2018 – 2021
Arkansas   2019 – 2021
California   2018 – 2021
Colorado   2018 – 2021
Connecticut   2019 – 2021
Georgia   2019 – 2021
Idaho   2019 – 2021
Illinois   2019 – 2021
Indiana   2019 – 2021
Iowa   2019 – 2021
Kansas   2019 – 2021
Louisiana   2019 – 2021
Michigan   2019 – 2021
Minnesota   2019 – 2021
Mississippi   2019 – 2021
Missouri   2019 – 2021
Nebraska   2019 – 2021
New Mexico   2019 – 2021
Oklahoma   2019 – 2021
Oregon   2019 – 2021
Pennsylvania   2019 – 2021
Rhode Island   2019 – 2021
South Carolina   2019 – 2021
Tennessee   2019 – 2021
Texas   2018 – 2021