Note 7 - Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

	Rental Commitments
	March 31, 2019
2019	$	86,149
2020		116,464
2021		118,519
2022		39,735
Total		360,867
Less: imputed interest		47,503
Current and noncurrent operating lease liability	$	313,364

	Rental Commitments
	December 31, 2018
2019	$	114,409
2020		116,464
2021		118,519
2022		39,735
Total	$	389,127