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Note 9 - Income Taxes - Reconciliation of Effective Income Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income tax expense at federal statutory rate $ 636 $ (351)
Income tax expense at federal statutory rate, percentage 21.00% 21.00%
Share-based compensation shortfall (windfall) $ (10) $ (425)
Share-based compensation shortfall (windfall), percentage (0.30%) 25.40%
Effect of state taxes, net of federal tax benefit $ 1,016 $ (16)
Effect of state taxes, net of federal tax benefit, percentage 33.50% 1.00%
Non-deductible items $ 845 $ 934
Non-deductible items, percentage 27.90% (55.80%)
Return to provision adjustment $ (84) $ 224
Return to provision adjustment, percentage (2.80%) (13.40%)
Foreign rate difference $ 25 $ 3
Foreign rate difference, percentage 0.80% (0.20%)
Minority interest $ (154) $ 0
Minority interest 5.10% 0.00%
Deferred only adjustments $ 579 $ 40
Deferred only adjustments, percentage 19.10% (2.40%)
Other $ 10 $ 31
Other, percentage 0.30% (1.90%)
Change in valuation allowance $ (2,349) $ (366)
Change in valuation allowance, percentage (77.60%) 21.90%
Income tax expense $ 822 $ 74
Income tax expense, percentage 27.10% (4.40%)