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Note 13 - Income Tax (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   

2022

   

2021

 

Current:

               

Federal

  $ -     $ -  

State and Local

    13       11  

Foreign

    230       -  
      243       11  
                 

Deferred:

               

Federal

    -       -  

State and Local

    -       -  

Foreign

    810       (139 )

Income tax expense/(benefit)

  $ 1,053     $ (128 )
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

 
                 

United States

  $ (112,959 )   $ (45,723 )

Foreign

    6,254       (1,552 )

Pretax loss

  $ (106,705 )   $ (47,275 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

 

Income tax benefit at the federal statutory rate

  $ (22,408 )   $ (9,928 )

State tax benefit

    (496 )     (2,875 )

Foreign tax differential

    168       (96 )

Stock-based compensation

    295       252  

Interest Expense

    58       1,842  

GILTI Inclusion

    1,126       -  

Prior year true-ups

    55       140  

Non-includible US Entities

    13,499       -  

Other

    46       497  

Credits

    (2,373 )     (2,074 )

Valuation Allowance

    11,083       12,114  

Income Tax Expense (Benefit)

    1,053       (128 )

Effective Tax Rate

    -0.99 %     0.27 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

 

Deferred Tax Assets

               

Organizational Costs, Start-up and Intangible Assets

  $ 2,309     $ 5,068  

Stock Based Compensation

    1,842       1,174  

NOLs, Unabsorbed Depreciation and R&D Credits C/F's

    68,201       61,624  

Interest expense carryover

    22,374       17,436  

Ethanol Credits

    1,500       1,500  

Carbon Oxide Sequestration Credit

    5,827       3,460  

Accrued Expenses

    2,001       3,312  

Operating Lease Liability

    1,512       1,082  

Other, net

    113       737  

Total Deferred Tax Assets

    105,679       95,392  

Valuation Allowance

    (95,214 )     (83,260 )

Net Deferred Tax Assets

    10,465       12,133  
                 

Deferred Tax Liabilities

               

Right of Use Asset

    (1,477 )     (1,238 )

Property, Plant & Equipment

    (9,788 )     (10,882 )

Other, net

    (10 )     (13 )

Total Deferred Tax Liabilities

    (11,275 )     (12,133 )

Net Deferred Tax Liabilities

  $ (810 )   $ -  
Summary of Income Tax Examinations [Table Text Block]

United States — Federal

2007 – present

United States — State

2008 – present

India

2013 – present

Mauritius

2006 – present