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Note L - Income Taxes - Reconciliation of the Statutory Tax Rates (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Statutory rate 21.00% 21.00%
State income tax-all states 1.00% 4.00%
Warrant Revaluation (11.00%)
NOL Expiration (11.00%) (22.00%)
Other 8.00% (3.00%)
Subtotal 19.00% (11.00%)
Valuation allowance (19.00%) 11.00%
Effective tax rate