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Note 10 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
   

2021

   

2020

 

U.S.

  $ (1,143,578 )   $ (2,537,388 )

Foreign

    653,075       427,042  
    $ (490,503 )   $ (2,110,346 )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   

2021

   

2020

 

Current:

               

Federal

  $ -     $ -  

State

    456       500  

Foreign

    336,568       250,711  

Total current

    337,024       251,211  
                 

Deferred:

               

Federal

    -       -  

State

    -       -  

Foreign

    (130,767 )     (129,004 )

Total deferred

    (130,767 )     (129,004 )

Income tax provision

  $ 206,257     $ 122,207  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   

2021

   

2020

 

U.S. federal statutory tax rate

    21.00

%

    21.00

%

State tax benefit, net

    (7.61

)%

    7.52

%

Stock compensation

    (4.15

)%

    (5.16

)%

Officers compensation

    (69.84

)%

    -

%

Attributes expiration

    (148.01

)%

    (38.04

)%

Other

    0.87

%

    (0.85

)%

Interest and penalties

    (14.27

)%

    -

%

Valuation allowance

    180.11

%

    9.75

%

Effective income tax rate

    (41.90

)%

    (5.78

)%

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

2021

   

2020

 

Deferred taxes:

               

NOLs

  $ 9,122,325     $ 9,456,605  

Inventory and other reserves

    24,128       24,128  

Stock based compensation expense

    296,657       853,239  

Lease liability

    16,125       25,151  

Accruals

    7,597       1,892  

Other

    96       96  

Total deferred tax assets

    9,466,928       10,361,111  

Depreciation and amortization

    (784,611 )     (908,380 )

Right-of-use assets

    (16,054 )     (24,767 )

Valuation allowance

    (9,504,575 )     (10,388,911 )

Net deferred tax liabilities

  $ (838,312 )   $ (960,947 )