Consolidated Statements of Stockholders' Equity - USD ($)	Total	Common Stock	Additional Paid In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2018		3,845,361
Beginning Balance at Dec. 31, 2018	$ 16,859,266	$ 3,846	$ 91,276,086	$ (74,420,666)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		80,000
Exercise of stock options	601,250	$ 80	601,170
Stock based compensation	1,065,852		1,065,852
Net loss	(1,736,020)			(1,736,020)
Other comprehensive loss - foreign currency translation adjustment	0
Ending Balance (in shares) at Mar. 31, 2019		3,925,361
Ending Balance at Mar. 31, 2019	16,790,348	$ 3,926	92,943,108	(76,156,686)
Beginning Balance (in shares) at Dec. 31, 2019		4,186,438
Beginning Balance at Dec. 31, 2019	$ 34,416,026	$ 4,187	97,239,455	(62,827,616)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	71,667	12,157
Exercise of stock options	$ 90,000	$ 12	89,988
Exercise of warrants (in shares)		59,510
Exercise of warrants	595,101	$ 60	595,041
Stock based compensation	686,599		686,599
Net loss	(1,684,643)			(1,684,643)
Other comprehensive loss - foreign currency translation adjustment	(293,491)				(293,491)
Ending Balance (in shares) at Mar. 31, 2020		4,258,105
Ending Balance at Mar. 31, 2020	$ 33,809,592	$ 4,259	$ 98,611,083	$ (64,512,259)	$ (293,491)