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Note 11 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
  

2022

  

2021

 

U.S.

 $(77,704) $(1,143,578)

Foreign

  273,359   653,075 
  $195,655  $(490,503)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
  

2022

  

2021

 

Current:

        

Federal

 $-  $- 

State

  1,356   456 

Foreign

  (364,879)  336,568 

Total current

  (363,523)  337,024 
         

Deferred:

        

Federal

  -   - 

State

  -   - 

Foreign

  (92,968)  (130,767)

Total deferred

  (92,968)  (130,767)

Income tax (benefit) provision

 $(456,491) $206,257 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

2022

  

2021

 

U.S. federal statutory tax rate

  21.00

%

  21.00

%

State tax benefit, net

  5.62

%

  (7.61

)%

Stock compensation

  18.56

%

  (4.15

)%

Officers compensation

  -

%

  (69.84

)%

Attributes expiration

  17.06

%

  (148.01

)%

Return to Provision

  (257.75

)%

  8.73

%

Other

  30.65

%

  (7.86

)%

NOL Adjustment

  295.28

%

  -

%

Unrecognized tax benefit

  361.72

%

  -

%

GILTI

  156.50

%

  -

%

Interest and penalties

  -

%

  (14.27

)%

Valuation allowance

  (882.41

)%

  180.11

%

Effective income tax rate

  (233.77

)%

  (41.90

)%

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

2022

  

2021

 

Deferred taxes:

        

NOLs

 $7,495,858  $9,122,325 

Inventory and other reserves

  31,340   24,128 

Stock based compensation expense

  196,700   296,657 

Lease liability

  5,883   16,125 

Accruals

  14,695   7,597 

Other

  96   96 

Total deferred tax assets

  7,744,572   9,466,928 

Depreciation and amortization

  (668,359)  (784,611)

Right-of-use assets

  (6,112)  (16,054)

Valuation allowance

  (7,778,053)  (9,504,575)

Net deferred tax liabilities

 $(707,952) $(838,312)
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
  

2022

  

2021

 

Gross unrecognized tax benefits at the beginning of the year

 $-  $- 

Increases related to current year positions

  -   - 

Increases (decreases) related to prior year positions

  691,675   - 

Expiration of unrecognized tax benefits

  -   - 

Gross unrecognized tax benefits at the end of the year

 $691,675  $-