Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Preferred Stock [Member] Series B Convertible Preferred Stock [Member]	Preferred Stock Additional Paid-in Capital [Member] Series B Convertible Preferred Stock [Member]	Common Stock [Member]	Common Stock Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	2,379		5,846,552
Balance at Dec. 31, 2018	$ 2	$ 2,378,997	$ 1,052,372	$ 82,204,902	$ (76,831,263)	$ 8,805,010
Issuance of common stock upon warrant exercise (in shares)			2,799,188			2,800,000
Issuance of common stock upon warrant exercise			$ 503,854	10,832,856		$ 11,336,710
Conversion of convertible preferred stock to common stock (in shares)	1,677		(476,431)
Conversion of convertible preferred stock to common stock	$ 1	1,676,998	$ (85,753)	(1,591,246)
Conversion of convertible preferred stock to common stock	(1)	(1,676,998)	85,753	1,591,246
Compensation cost for stock options granted				275,833		275,833
Reclassification of stock-based compensation liability upon option cancellation				3,151,944		3,151,944
Net loss					(4,073,307)	(4,073,307)
Balance (in shares) at Mar. 31, 2019	702		9,122,171
Balance at Mar. 31, 2019	$ 1	701,999	$ 1,641,979	98,056,781	(80,904,570)	19,496,190
Balance (in shares) at Dec. 31, 2019	671		9,130,984
Balance at Dec. 31, 2019	$ 1	670,999	$ 1,643,565	104,912,480	(94,071,040)	13,156,005
Compensation cost for stock options granted				687,752		687,752
Net loss					(2,947,420)	(2,947,420)
Balance (in shares) at Mar. 31, 2020	671		9,130,984
Balance at Mar. 31, 2020	$ 1	$ 670,999	$ 1,643,565	$ 105,600,232	$ (97,018,460)	$ 10,896,337