Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Total	Common stock	Additional paid-in capital	Accumulated other comprehensive loss	Accumulated deficit
Balance at Dec. 31, 2021	$ 83,677,084	$ 49,043	$ 476,788,012	$ (98,877)	$ (393,061,094)
Balance, shares at Dec. 31, 2021		49,043,246
Share-based compensation	81,053		81,053
Net loss	(3,386,417)				(3,386,417)
Foreign currency translation adjustments	(7,435)			(7,435)
Balance at Mar. 31, 2022	80,364,285	$ 49,043	476,869,065	(106,312)	(396,447,511)
Balance, shares at Mar. 31, 2022		49,043,246
Balance at Dec. 31, 2021	83,677,084	$ 49,043	476,788,012	(98,877)	(393,061,094)
Balance, shares at Dec. 31, 2021		49,043,246
Net loss	(7,415,415)
Foreign currency translation adjustments	(19,415)
Balance at Jun. 30, 2022	76,605,729	$ 49,046	477,151,484	(118,292)	(400,476,509)
Balance, shares at Jun. 30, 2022		49,046,246
Balance at Mar. 31, 2022	80,364,285	$ 49,043	476,869,065	(106,312)	(396,447,511)
Balance, shares at Mar. 31, 2022		49,043,246
Share-based compensation	274,502		274,502
Issuance of common stock for option exercises	7,920	$ 3	7,917
Issuance of common stock for option exercises, shares		3,000
Net loss	(4,028,998)			(4,028,998)
Foreign currency translation adjustments	(11,980)			(11,980)
Balance at Jun. 30, 2022	76,605,729	$ 49,046	477,151,484	(118,292)	(400,476,509)
Balance, shares at Jun. 30, 2022		49,046,246
Balance at Dec. 31, 2022	70,242,035	$ 49,046	477,438,451	(115,285)	(407,130,177)
Balance, shares at Dec. 31, 2022		49,046,246
Share-based compensation	403,263		403,263
Net loss	(2,917,504)				(2,917,504)
Foreign currency translation adjustments	(1,542)			(1,542)
Balance at Mar. 31, 2023	67,726,252	$ 49,046	477,841,714	(116,827)	(410,047,681)
Balance, shares at Mar. 31, 2023		49,046,246
Balance at Dec. 31, 2022	70,242,035	$ 49,046	477,438,451	(115,285)	(407,130,177)
Balance, shares at Dec. 31, 2022		49,046,246
Net loss	(5,789,324)
Foreign currency translation adjustments	(5,755)
Balance at Jun. 30, 2023	65,175,929	$ 49,046	478,167,424	(121,040)	(412,919,501)
Balance, shares at Jun. 30, 2023		49,046,246
Balance at Mar. 31, 2023	67,726,252	$ 49,046	477,841,714	(116,827)	(410,047,681)
Balance, shares at Mar. 31, 2023		49,046,246
Share-based compensation	325,710		325,710
Net loss	(2,871,820)				(2,871,820)
Foreign currency translation adjustments	(4,213)			(4,213)
Balance at Jun. 30, 2023	$ 65,175,929	$ 49,046	$ 478,167,424	$ (121,040)	$ (412,919,501)
Balance, shares at Jun. 30, 2023		49,046,246