CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' DEFICIT (Unaudited) Statement - USD ($)	Total	Common Stock	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	AOCI Attributable to Parent [Member]
Beginning balance (shares) at Dec. 31, 2019		5,918,733
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
Shares issued in connection with vesting of restricted stock (shares)		1,104
Shares issued in connection with vesting of restricted stock	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 (shares) at Mar. 31, 2020		5,919,837
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
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 (shares) at Sep. 30, 2020		5,919,837
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
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 (shares) at Jun. 30, 2020		5,919,837
Ending balance at Jun. 30, 2020	(15,095,844)	$ 5,920	110,997,871	(124,185,135)	(1,914,500)
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 (shares) at Sep. 30, 2020		5,919,837
Ending balance at Sep. 30, 2020	(14,011,389)	$ 5,920	110,560,351	(122,638,926)	(1,938,734)
Beginning balance (shares) at Dec. 31, 2020		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
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 (shares) at Mar. 31, 2021		5,949,463
Ending balance at Mar. 31, 2021	(14,566,353)	$ 5,949	109,637,357	(122,308,096)	(1,901,563)
Beginning balance (shares) at Dec. 31, 2020		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	449,996
Accretion of Series A redeemable convertible preferred stock	(285,814)
Dividends on Series A redeemable convertible preferred stock	(848,898)
Foreign currency translation	92,802
Ending balance (shares) at Sep. 30, 2021		7,074,364
Ending balance at Sep. 30, 2021	(11,499,680)	$ 7,074	112,671,753	(122,283,348)	(1,895,159)
Beginning balance (shares) at Mar. 31, 2021		5,949,463
Beginning balance at Mar. 31, 2021	(14,566,353)	$ 5,949	109,637,357	(122,308,096)	(1,901,563)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(349,684)			(349,684)
Stock Issued During Period, Shares, New Issues		811,750
Stock Issued During Period, Value, New Issues	2,737,770	$ 812	2,736,958
Share-based compensation to employees	4,697		4,697
Shares issued in connection with vesting of restricted stock (shares)		28,151
Shares issued in connection with vesting of restricted stock	0		(28)
Accretion of Series A redeemable convertible preferred stock	(75,183)		(75,183)
Dividends on Series A redeemable convertible preferred stock	(282,926)		(282,926)
Foreign currency translation	(4,740)				(4,740)
Ending balance (shares) at Jun. 30, 2021		6,789,364
Ending balance at Jun. 30, 2021	(12,536,419)	$ 6,789	112,020,875	(122,657,780)	(1,906,303)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	374,432			374,432
Stock Issued During Period, Shares, New Issues		285,000
Stock Issued During Period, Value, New Issues	948,566	$ 285	948,281
Share-based compensation to employees	4,916		4,916
Shares issued in connection with vesting of restricted stock		$ 28
Accretion of Series A redeemable convertible preferred stock	(13,517)		(13,517)
Dividends on Series A redeemable convertible preferred stock	(288,802)		(288,802)
Foreign currency translation	11,144				11,144
Ending balance (shares) at Sep. 30, 2021		7,074,364
Ending balance at Sep. 30, 2021	$ (11,499,680)	$ 7,074	$ 112,671,753	$ (122,283,348)	$ (1,895,159)