Note 2 - Summary of Significant Accounting Policies (FY) (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2021

Dec. 31, 2020

Summary of Significant Accounting Policies [Abstract]

Revenue by Major Customers

	Three Months Ended March 31,
Customer	2021			2020			Variance
Department of Defense		0.0	%		73.7	%		(73.7	)%
Incuron		0.0	%		26.3	%		(26.3	)%
Total		0.0	%		100.0	%		(100	)%

	Years ended December 31,
	2020			2019			Variance
U.S. Department of Defense		81.2	%		64.5	%		16.7	%
Incuron, Inc		18.8	%		35.5	%		-16.7	%
		100.0	%		100.0	%		0.0	%

Useful Lives

Asset Category	Estimated Useful Life (in Years)
Laboratory equipment	5
Furniture and fixtures	5
Computer equipment	3

Accumulated Other Comprehensive Income (Loss)

	Gains and losses on foreign exchange translations
Beginning balance	$	(685,680	)
Other comprehensive income (loss) before reclassifications		(5,184	)
Amounts reclassified from accumulated other comprehensive loss		—
Ending balance	$	(690,864	)

	Gains and (losses) on foreign exchange translations			Total
Beginning balance	$	(568,030	)	$	(568,030	)
Realized foreign currency translation		(57,936	)		(57,936	)
Foreign currency translation		(59,714	)		(59,714	)
Ending balance	$	(685,680	)	$	(685,680	)

Common Equivalent Securities

	As of March 31,
Common Equivalent Securities	2021		2020
Warrants		299,519		222,253
Options		67,901		96,397
Total		367,420		318,650

	As of December 31,
Common Equivalent Securities	2020		2019
Warrants		371,340		327,253
Options		76,064		136,105
Total		447,404		463,358