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Note 9 - Commitments and Contingencies	3 Months Ended
Note 9 - Commitments and Contingencies	Mar. 31, 2020
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	9. Commitments and Contingencies From time to time, we are involved in litigation relating to claims arising out of our operations in the normal course of business. At March 31, 2020 , we were not involved in any legal proceedings that are expected, individually or in the aggregate, to have a material adverse effect on our financial position or results of operations.