Note 9 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended December 31, 2019			Year Ended December 31, 2018
Current:
Federal	$	-		$	-
State		-			-
Foreign		-			-
Deferred:
Federal		7,432,665			1,446,640
State		1,459,313			244,896
Foreign		-			-
Change in valuation allowance		(8,891,978	)		(1,691,536	)
Total Benefit for Income Taxes	$	-		$	-

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31, 2019			December 31, 2018
Deferred tax assets:
Stock-based compensation	$	4,514,806		$	3,768,282
Tax credit carryforwards		1,966,817			1,790,387
Net operating loss carryforwards		19,381,496			11,745,648
Intangible assets		564,880			451,556
Other		637,687			373,314
Total deferred tax assets		27,065,686			18,129,187
Deferred tax liabilities:
Property and equipment		331,231			305,619
Total deferred tax liabilities		331,231			305,619
Net deferred tax assets		26,734,455			17,823,568
Less valuation allowance		(26,734,455	)		(17,823,568	)
Total deferred tax assets (liabilities)	$	-		$	-

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended December 31, 2019			Year Ended December 31, 2018
U.S. federal statutory income tax expense (benefit)		21.0	%		21.0	%
State and local income tax, net of benefits		6.8	%		3.6	%
Change in fair value of derivatives		(7.8	%)		(348.0	%)
Release of valuation allowance in connection with merger		-			-
Change in tax rates		-			-
True-up and other		23.3	%		134.7	%
Change in valuation allowance for deferred income tax assets		(43.3	%)		188.7	%
Effective income tax rate		0.0	%		0.0	%