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Note 11 - Income Taxes - Reconciliations of Federal Statutory Rate to Effective Income Tax Rate (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 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 0.00% (69.84%)
Attributes expiration 17.06% (148.01%)
Return to Provision (257.75%) 8.73%
Other adjustment 30.65% (7.86%)
NOL Adjustment 295.28% 0.00%
Unrecognized tax benefit 361.72% 0.00%
GILTI 156.50% 0.00%
Interest and penalties 0.00% (14.27%)
Valuation allowance (882.41%) 180.11%
Effective income tax rate (233.77%) (41.90%)