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Note 7 - Income Taxes (Details Textual) - State and Local Jurisdiction [Member] $ in Thousands | Dec. 31, 2020 USD ($)
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Operating Loss Carryforwards, Total | $ 302
Iowa Department of Revenue [Member] |
Operating Loss Carryforwards, Total | 190
Tax Credit Carryforward, Amount | 212
Minnesota Department of Revenue [Member] |
Tax Credit Carryforward, Amount | 326
Wisconsin Department of Revenue [Member] |
Tax Credit Carryforward, Amount | $ 586

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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