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Note 9 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
  

2022

  

2021

 

Current:

        

Federal

 $1,270  $-- 

State

  456   11,967 
         

Current income tax provision (benefit):

  1,726   11,967 
         

Deferred:

        

Federal

  577,866

 

  (2,156,278

)

State

  176,676

 

  (562,667

)

         

Deferred income tax provision (benefit), net

  754,542

 

  (2,718,945

)

         

Total

 $756,268

 

 $(2,706,978

)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
  

December 31, 2022

  

December 25, 2021

 

Deferred Tax Assets:

        

Net operating loss carryforwards

 $132,632  $1,050,449 

Stock compensation

  209,092   157,845 

Credit carryforwards

  1,253,956   1,285,119 

Inventory

  80,628   77,563 

Accrued liabilities

  5,071   12,390 

Depreciation

  179,481   237,880 

Capitalized R&D, net

  205,878   - 

Other

  2,698   2,732 

Net deferred tax assets

 $2,069,436  $2,823,978 
Summary Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
  

2022

  

2021

 
         

Gross deferred tax balance at beginning of year

 

$

2,823,978

  

$

2,966,693

 
         

Deferred tax benefit (provision)

  

(754,542

)

  

(142,715

)

Valuation allowance

  

0

   

0

 

Balance at end of year, net

 

$

2,069,436

  

$

2,823,978

 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

2022

  

2021

 
         

Tax at statutory rate

 

$

578,214

  

$

106,869

 

State tax, net of federal benefit

  

177,036

   

36,301

 
         

Net operating loss and credit carryforwards

  

--

   

--

 
         

Valuation allowance

  

--

   

(2,849,693

)

         

Other

  

1,018

   

(455

         

Total

 

$

756,268

  

$

(2,706,978

)