CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' DEFICIT (Unaudited) Statement - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	AOCI Attributable to Parent [Member]
Beginning balance (shares) at Dec. 31, 2018		5,872,552
Ending balance (shares) at Mar. 31, 2019		5,872,552
Beginning balance at Dec. 31, 2018	$ (10,765,901)	$ 5,873	$ 113,243,227	$ (122,119,899)	$ (1,895,102)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(124,907)			(124,907)
Share-based compensation to employees	9,251		9,251
Accretion of Series A redeemable convertible preferred stock	(129,239)		(129,239)
Dividends on Series A redeemable convertible preferred stock	(247,027)		(247,027)
Foreign currency translation	19,392				19,392
Ending balance at Mar. 31, 2019	(11,238,431)	$ 5,873	112,876,212	(122,244,806)	(1,875,710)
Beginning balance (shares) at Dec. 31, 2018		5,872,552
Ending balance (shares) at Sep. 30, 2019		5,918,733
Beginning balance at Dec. 31, 2018	(10,765,901)	$ 5,873	113,243,227	(122,119,899)	(1,895,102)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,853,544)
Accretion of Series A redeemable convertible preferred stock	(402,861)
Dividends on Series A redeemable convertible preferred stock	(770,027)
Foreign currency translation	(161,515)
Ending balance at Sep. 30, 2019	(13,925,266)	$ 5,919	112,098,875	(123,973,443)	(2,056,617)
Beginning balance (shares) at Mar. 31, 2019		5,872,552
Ending balance (shares) at Jun. 30, 2019		5,887,733
Beginning balance at Mar. 31, 2019	(11,238,431)	$ 5,873	112,876,212	(122,244,806)	(1,875,710)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,171,723)			(1,171,723)
Share-based compensation to employees	16,231		16,231
Warrants exercised (shares)		15,181
Warrants exercised	0	$ (15)	(15)
Accretion of Series A redeemable convertible preferred stock	(134,223)		(134,223)
Dividends on Series A redeemable convertible preferred stock	(256,553)		(256,553)
Foreign currency translation	(49,410)				(49,410)
Ending balance at Jun. 30, 2019	(12,834,109)	$ 5,888	112,501,652	(123,416,529)	(1,925,120)
Ending balance (shares) at Sep. 30, 2019		5,918,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(556,914)			(556,914)
Share-based compensation to employees	3,100		3,100
Warrants exercised (shares)		31,000
Warrants exercised	0	$ (31)	(31)
Accretion of Series A redeemable convertible preferred stock	(139,399)		(139,399)
Dividends on Series A redeemable convertible preferred stock	(266,447)		(266,447)
Foreign currency translation	(131,497)				(131,497)
Ending balance at Sep. 30, 2019	$ (13,925,266)	$ 5,919	112,098,875	(123,973,443)	(2,056,617)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares outstanding (in shares)	5,918,733
Beginning balance (shares) at Dec. 31, 2019		5,918,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock issued (shares)		1,104
Ending balance (shares) at Mar. 31, 2020		5,919,837
Beginning balance at Dec. 31, 2019	$ (14,031,306)	$ 5,919	111,727,888	(123,871,853)	(1,893,260)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(719,840)			(719,840)
Restricted stock issued	0	(1)	(1)
Share-based compensation to employees	4,510		4,510
Accretion of Series A redeemable convertible preferred stock	(26,090)		(26,090)
Dividends on Series A redeemable convertible preferred stock	(285,760)		(285,760)
Foreign currency translation	(13,153)				(13,153)
Ending balance at Mar. 31, 2020	(15,071,639)	$ 5,920	111,420,547	(124,591,693)	(1,906,413)
Beginning balance (shares) at Dec. 31, 2019		5,918,733
Ending balance (shares) at Sep. 30, 2020		5,919,837
Beginning balance at Dec. 31, 2019	(14,031,306)	$ 5,919	111,727,888	(123,871,853)	(1,893,260)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	1,232,927
Accretion of Series A redeemable convertible preferred stock	(366,566)
Dividends on Series A redeemable convertible preferred stock	(812,362)
Foreign currency translation	(45,474)
Ending balance at Sep. 30, 2020	(14,011,389)	$ 5,920	110,560,351	(122,638,926)	(1,938,734)
Beginning balance (shares) at Mar. 31, 2020		5,919,837
Ending balance (shares) at Jun. 30, 2020		5,919,837
Beginning balance at Mar. 31, 2020	(15,071,639)	$ 5,920	111,420,547	(124,591,693)	(1,906,413)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	406,558			406,558
Share-based compensation to employees	3,060		3,060
Accretion of Series A redeemable convertible preferred stock	(165,141)		(165,141)
Dividends on Series A redeemable convertible preferred stock	(260,595)		(260,595)
Foreign currency translation	(8,087)				(8,087)
Ending balance at Jun. 30, 2020	(15,095,844)	$ 5,920	110,997,871	(124,185,135)	(1,914,500)
Ending balance (shares) at Sep. 30, 2020		5,919,837
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	1,546,209			1,546,209
Share-based compensation to employees	3,822		3,822
Accretion of Series A redeemable convertible preferred stock	(175,335)		(175,335)
Dividends on Series A redeemable convertible preferred stock	(266,007)		(266,007)
Foreign currency translation	(24,234)				(24,234)
Ending balance at Sep. 30, 2020	$ (14,011,389)	$ 5,920	$ 110,560,351	$ (122,638,926)	$ (1,938,734)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares outstanding (in shares)	5,919,837