Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock	Additional Paid-in capital	Accumulated other comprehensive loss	Accumulated deficit	Total
Equity, beginning balance at Dec. 31, 2019	$ 21,023	$ 226,284,548	$ (11,533,778)	$ (90,528,263)	$ 124,243,530
Equity, beginning balance (in shares) at Dec. 31, 2019	21,022,752
Increase (Decrease) in Stockholders' Equity
Exercise of stock options	$ 32	29,491			29,523
Exercise of stock options (in shares)	32,090
Stockbased compensation		905,471			905,471
Foreign currency translation			(2,424,653)		(2,424,653)
Net loss				(9,400,257)	(9,400,257)
Equity, ending balance at Mar. 31, 2020	$ 21,055	227,219,510	(13,958,431)	(99,928,520)	113,353,614
Equity, ending balance (in shares) at Mar. 31, 2020	21,054,842
Equity, beginning balance at Dec. 31, 2019	$ 21,023	226,284,548	(11,533,778)	(90,528,263)	124,243,530
Equity, beginning balance (in shares) at Dec. 31, 2019	21,022,752
Increase (Decrease) in Stockholders' Equity
Foreign currency translation					(667,870)
Net loss					(25,768,184)
Equity, ending balance at Jun. 30, 2020	$ 21,187	228,597,264	(12,201,648)	(116,296,447)	100,120,356
Equity, ending balance (in shares) at Jun. 30, 2020	21,186,827
Equity, beginning balance at Mar. 31, 2020	$ 21,055	227,219,510	(13,958,431)	(99,928,520)	113,353,614
Equity, beginning balance (in shares) at Mar. 31, 2020	21,054,842
Increase (Decrease) in Stockholders' Equity
Exercise of stock options	$ 132	121,294			121,426
Exercise of stock options (in shares)	131,985
Stockbased compensation		1,256,460			1,256,460
Foreign currency translation			1,756,783		1,756,783
Net loss				(16,367,927)	(16,367,927)
Equity, ending balance at Jun. 30, 2020	$ 21,187	228,597,264	(12,201,648)	(116,296,447)	100,120,356
Equity, ending balance (in shares) at Jun. 30, 2020	21,186,827
Equity, beginning balance at Dec. 31, 2020	$ 21,187	231,418,356	(10,037,261)	(144,007,075)	77,395,207
Equity, beginning balance (in shares) at Dec. 31, 2020	21,186,827
Increase (Decrease) in Stockholders' Equity
Stockbased compensation		1,822,562			1,822,562
Foreign currency translation			(402,850)		(402,850)
Net loss				(9,668,755)	(9,668,755)
Equity, ending balance at Mar. 31, 2021	$ 21,187	233,240,918	(10,440,111)	(153,675,830)	69,146,164
Equity, ending balance (in shares) at Mar. 31, 2021	21,186,827
Equity, beginning balance at Dec. 31, 2020	$ 21,187	231,418,356	(10,037,261)	(144,007,075)	77,395,207
Equity, beginning balance (in shares) at Dec. 31, 2020	21,186,827
Increase (Decrease) in Stockholders' Equity
Foreign currency translation					(209,830)
Net loss					(19,919,768)
Equity, ending balance at Jun. 30, 2021	$ 21,187	235,104,416	(10,247,091)	(163,926,843)	60,951,669
Equity, ending balance (in shares) at Jun. 30, 2021	21,186,827
Equity, beginning balance at Mar. 31, 2021	$ 21,187	233,240,918	(10,440,111)	(153,675,830)	69,146,164
Equity, beginning balance (in shares) at Mar. 31, 2021	21,186,827
Increase (Decrease) in Stockholders' Equity
Stockbased compensation		1,863,498			1,863,498
Foreign currency translation			193,020		193,020
Net loss				(10,251,013)	(10,251,013)
Equity, ending balance at Jun. 30, 2021	$ 21,187	$ 235,104,416	$ (10,247,091)	$ (163,926,843)	$ 60,951,669
Equity, ending balance (in shares) at Jun. 30, 2021	21,186,827