Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2020
Use of Estimates, Policy [Policy Text Block]	These financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position of the Company as of March 31, 2020 and the results of its operations and changes in equity for the three months ended March 31, 2020 and 2019, and the results of its cash flows for the three months ended March 31, 2020 and 2019 have been included. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019. The accompanying unaudited condensed consolidated balance sheet at December 31, 2019 has been derived from the audited financial statements at that date but does not include all of the information or notes required by U.S. generally accepted accounting principles for complete financial statements.

Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2020

Use of Estimates, Policy [Policy Text Block]

These financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position of the Company as of March 31, 2020 and the results of its operations and changes in equity for the three months ended March 31, 2020 and 2019, and the results of its cash flows for the three months ended March 31, 2020 and 2019 have been included. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

The accompanying unaudited condensed consolidated balance sheet at December 31, 2019 has been derived from the audited financial statements at that date but does not include all of the information or notes required by U.S. generally accepted accounting principles for complete financial statements.