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	(2,763,931)				(2,763,931)
Other comprehensive income (loss)	87,551			87,551
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	(486,635)	(121,678,498)
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)