Note 4 - Prepaid Expenses (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	June 30,		December 31,
	2019		2018
Prepaid insurance	$	201,234	$	160,576
Prepaid research and development		446,143		218,090
Professional services		117,748		110,094
Financial exchange fees		21,000		-
Prepaid rent		12,825		-
Retainer and security deposits		14,218		16,718
Other		-		4,355
Total prepaid expenses	$	813,168	$	509,833