XML 98 R82.htm IDEA: XBRL DOCUMENT v3.20.4
Note 14 - Income Taxes (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax $ 226,000 $ 226,000
Open Tax Year 2017 2018 2019 2020  
Liability for Uncertainty in Income Taxes, Current $ 0 0
Income Tax Examination, Penalties and Interest Accrued, Total 0 0
Unrecognized Tax Benefits, Ending Balance 0  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit 0 0
Other Liabilities [Member]    
Accrued Income Taxes, Total $ 55,000 $ 86,000