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, 2019		5,918,733
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)
Share-based compensation to employees	4,510		4,510
Restricted stock issued (shares)		1,104
Restricted stock issued	0	$ 1	(1)
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, 2020		5,949,463
Ending balance (shares) at Mar. 31, 2021		5,949,463
Beginning balance at Dec. 31, 2020	(14,608,186)	$ 5,949	110,107,170	(122,733,344)	(1,987,961)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	425,248			425,248
Share-based compensation to employees	4,471		4,471
Restricted stock issued (shares)
Restricted stock issued	0		0
Accretion of Series A redeemable convertible preferred stock	(197,114)		(197,114)
Dividends on Series A redeemable convertible preferred stock	(277,170)		(277,170)
Foreign currency translation	86,398				86,398
Ending balance at Mar. 31, 2021	$ (14,566,353)	$ 5,949	$ 109,637,357	$ (122,308,096)	$ (1,901,563)