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Note 20 - Income Tax - Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Computed "expected" income tax benefit | $ (1,161) | $ (1,674)
Permanent differences, net | 241 | (117)
Foreign tax rate differential | 42 | (11)
State income taxes, net of federal income tax benefit | (74) | (121)
Non-deductible stock compensation expense | 205 | (329)
Acquisition costs | 3 | 438
Tax credits | 220 | (242)
Change in reserve for uncertain tax position | (111) | 203
Impact of change to prior year tax accruals | 314 | 100
Change in valuation allowance allocated to income tax benefit | (578) | (1,850)
Other | 84 | (73)
Total income tax benefit | $ (815) | $ (3,676)

X
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