Note 4 - Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	2020		2019
Accrued salaries and directors' fees	$	279,696	$	1,732,702
Other accrued expenses		79,585		118,338
Total accrued expenses	$	359,281	$	1,851,040