Note 9 - COVID-19

9 Months Ended

Sep. 30, 2021

COVID-19 [Member]

Notes to Financial Statements

Unusual or Infrequent Items, or Both, Disclosure [Text Block]

9. COVID-19  

In early 2020, a coronavirus that causes COVID-19 emerged globally, which is currently affecting the global economies and has a resulting effect on the Company.  Therefore, while the Company expects this matter to negatively impact the Company's financial condition, results of operations, or cash flows, the extent of the financial impact and duration cannot be reasonably estimated at this time.