Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2019	$ 1,824,708	$ 57	$ 57,957,097		$ (56,125,982)	$ (6,464)
Beginning balance, shares at Dec. 31, 2019		574,524				27
Proceeds of public offering, net offering costs	13,475,535	$ 166	13,475,369
Proceeds of public offering, net offering costs, shares		1,660,000
Proceeds from issuance of pre-funded warrants in conjunction with public offering	48	$ 48
Proceeds from issuance of pre-funded warrants in conjunction with public offering, shares		483,000
Exercise of warrants	161,250	$ 10	161,240
Exercise of warrants, shares		96,169
Exercise of stock options, shares		61
Common stock issued upon vesting of restricted stock units, Shares		1,033
Restricted stock vested, shares		16
Adjustment due to reverse stock split		(69)
Stock-based compensation	123,209		123,209
Net loss	(3,801,993)				(3,801,993)
Ending balance at Mar. 31, 2020	11,782,757	$ 281	71,716,915		(59,927,975)	$ (6,464)
Ending balance, shares at Mar. 31, 2020		2,814,734				27
Beginning balance at Dec. 31, 2020	11,565,374	$ 457	79,273,964	$ (12,690)	(67,689,893)	$ (6,464)
Beginning balance, shares at Dec. 31, 2020		4,593,184				27
Exercise of warrants	7,288,275	$ 102	7,288,173
Exercise of warrants, shares		999,445
Common stock issued upon vesting of restricted stock units		$ 1	(1)
Common stock issued upon vesting of restricted stock units, Shares		11,397
Restricted stock vested, shares		10
Stock-based compensation	165,971		165,971
Unrealized gain on foreign currency	8,323			8,323
Net loss	(2,960,794)				(2,960,794)
Ending balance at Mar. 31, 2021	$ 16,067,149	$ 560	$ 86,728,107	$ (4,367)	$ (70,650,687)	$ (6,464)
Ending balance, shares at Mar. 31, 2021		5,604,036				27