Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Accumulated OCI	Accumulated Deficit	Total
Balance (in shares) at Dec. 31, 2018	8,411,245
Balance at Dec. 31, 2018	$ 84,113	$ 94,926,560	$ (186,485)	$ (70,407,218)	$ 24,416,970
Common stock repurchased, shares	(86,373)
Common stock repurchased, amount	$ (865)	(364,820)			(365,685)
Issuance of common stock restricted (in shares)	66,274
Issuance of common stock restricted	$ 663	(663)			0
Issuance of common stock through at-the-market offering program, net of issuance costs of $333,305 amount					0
Cancellation of common stock, shares	(5,000)
Cancellation of common stock, amount	$ (50)	50			0
Stock compensation expense restricted		381,251			381,251
Stock compensation expense non-qualified stock options		336,736			336,736
Foreign currency translation gain			(56,109)		(56,109)
Net loss				226,255	226,255
Balance (in shares) at Dec. 31, 2019	8,386,146
Balance at Dec. 31, 2019	$ 83,861	95,279,114	(242,594)	(70,180,963)	24,939,418
Reverse split adjustment		(75,475)	75,475		0
Issuance of shares for rounding on the reverse split, shares	2,546
Issuance of shares for rounding on the reverse split, amount	$ 2	(2)			0
Common stock repurchased, shares	(2,416)
Common stock repurchased, amount	$ (2)	(10,111)			(10,113)
Issuance of common stock options exercises (in shares)	32,803
Issuance of common stock options exercises	$ 33	4,966			4,999
Issuance of common stock restricted (in shares)	58,123
Issuance of common stock restricted	$ 58	(58)			0
Issuance of common stock through at-the-market offering program, net of issuance costs of $333,305, shares	399,313
Issuance of common stock through at-the-market offering program, net of issuance costs of $333,305 amount	$ (399)	(4,345,076)			4,345,475
Stock compensation expense restricted		704,973			704,973
Stock compensation expense non-qualified stock options		105,308			105,308
Foreign currency translation gain			137,979		137,979
Net loss				10,323,684	10,323,684
Balance (in shares) at Dec. 31, 2020	8,876,515
Balance at Dec. 31, 2020	$ 8,876	$ 100,504,741	$ (104,615)	$ (59,857,279)	$ 40,551,723