Note 5 - Prepaid Expenses (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	December 31,		December 31,
	2018		2017
Prepaid insurance	$	160,576	$	125,056
Prepaid research and development		218,090
Professional services		110,094		97,788
Retainer and security deposits		16,718		14,218
Other		4,355		13,882
Total prepaid expenses	$	509,833	$	250,944