Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Common Stock	Additional paid-in capital	Accumulated other comprehensive loss	Accumulated deficit
Beginning Balance, issued and outstanding (in shares) at Dec. 31, 2018		15,098,837
Beginning Balance at Dec. 31, 2018	$ 23,234,303	$ 15,099	$ 142,707,957	$ (574,186)	$ (118,914,567)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,763,932)				(2,763,932)
Other comprehensive income (loss)	87,552			87,552
Issuance of common stock, net (in shares)		3,345,282
Issuance of common stock, net	6,609,655	$ 3,345	6,606,310
Exercise of warrants (in shares)		76,797
Exercise of warrants	250,424	$ 77	250,347
Share based compensation (in shares)		176,561
Share based compensation	138,498	$ 176	138,322
Ending Balance, issued and outstanding (in shares) at Mar. 31, 2019		18,697,477
Ending Balance at Mar. 31, 2019	27,556,500	$ 18,697	149,702,936	(486,634)	(121,678,499)
Beginning Balance, issued and outstanding (in shares) at Dec. 31, 2018		15,098,837
Beginning Balance at Dec. 31, 2018	23,234,303	$ 15,099	142,707,957	(574,186)	(118,914,567)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(6,790,663)
Other comprehensive income (loss)	172,340
Ending Balance, issued and outstanding (in shares) at Jun. 30, 2019		21,598,555
Ending Balance at Jun. 30, 2019	29,718,468	$ 21,598	155,803,946	(401,846)	(125,705,230)
Beginning Balance, issued and outstanding (in shares) at Mar. 31, 2019		18,697,477
Beginning Balance at Mar. 31, 2019	27,556,500	$ 18,697	149,702,936	(486,634)	(121,678,499)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,026,731)				(4,026,731)
Other comprehensive income (loss)	84,788			84,788
Issuance of common stock, net (in shares)		2,901,078
Issuance of common stock, net	5,785,693	$ 2,901	5,782,792
Share based compensation	318,218		318,218
Ending Balance, issued and outstanding (in shares) at Jun. 30, 2019		21,598,555
Ending Balance at Jun. 30, 2019	29,718,468	$ 21,598	155,803,946	(401,846)	(125,705,230)
Beginning Balance, issued and outstanding (in shares) at Dec. 31, 2019		21,635,365
Beginning Balance at Dec. 31, 2019	23,760,629	$ 21,635	156,241,363	(360,160)	(132,142,209)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,109,618)				(3,109,618)
Other comprehensive income (loss)	(381,985)			(381,985)
Issuance of common stock, net (in shares)		10,350,000
Issuance of common stock, net	14,521,704	$ 10,350	14,511,354
Share based compensation (in shares)		100,319
Share based compensation	205,353	$ 101	205,252
Ending Balance, issued and outstanding (in shares) at Mar. 31, 2020		32,085,684
Ending Balance at Mar. 31, 2020	34,996,083	$ 32,086	170,957,969	(742,145)	(135,251,827)
Beginning Balance, issued and outstanding (in shares) at Dec. 31, 2019		21,635,365
Beginning Balance at Dec. 31, 2019	23,760,629	$ 21,635	156,241,363	(360,160)	(132,142,209)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(6,633,302)
Other comprehensive income (loss)	(216,484)
Ending Balance, issued and outstanding (in shares) at Jun. 30, 2020		32,105,684
Ending Balance at Jun. 30, 2020	31,782,391	$ 32,106	171,102,440	(576,644)	(138,775,511)
Beginning Balance, issued and outstanding (in shares) at Mar. 31, 2020		32,085,684
Beginning Balance at Mar. 31, 2020	34,996,083	$ 32,086	170,957,969	(742,145)	(135,251,827)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,523,684)				(3,523,684)
Other comprehensive income (loss)	165,501			165,501
Issuance of common stock, net (in shares)		20,000
Issuance of common stock, net	40,600	$ 20	40,580
Share based compensation	103,891		103,891
Ending Balance, issued and outstanding (in shares) at Jun. 30, 2020		32,105,684
Ending Balance at Jun. 30, 2020	$ 31,782,391	$ 32,106	$ 171,102,440	$ (576,644)	$ (138,775,511)