Note 4 - Leases - Maturities of Lease Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
January 2020 – December 2020	$ 1,037,680
January 2020 – December 2020	42,290
January 2021 – December 2021	860,320
January 2021 – December 2021	42,290
January 2022 – December 2022	782,984
January 2022 – December 2022	40,722
January 2023 – December 2023	740,531
January 2023 – December 2023	36,099
January 2024 – December 2024	688,008
January 2024 – December 2024	37,041
Thereafter	2,899,120
Thereafter	32,549
Total payment under lease agreements	7,008,644
Total payment under lease agreements	230,991
Less imputed interest	(1,867,104)
Less imputed interest	(23,947)
Operating Lease, Liability, Total	5,141,540
Total lease liability	$ 207,044	$ 13,789