STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital	Accumulated Income	Accumulated Deficit	Treasury Stock	Total
Beginning Balance, Amount at Dec. 31, 2017	$ 3,725	$ 1,649	$ 68,574,974	$ 975,877	$ (55,845,766)	$ (26,529)	$ 13,683,930
Beginning Balance, Shares at Dec. 31, 2017	3,724,547	1,648,657				(14,535)
Repurchase of common and preferred shares, shares	(33,899)					(4,905)
Repurchase of common and preferred shares, amount	$ (34)		(107,184)		63,244	$ (7,986)	(51,960)
Share-based compensation expense			356,354				356,354
Foreign currency translation adjustment				(372,157)			(372,157)
Net loss							(509,370)
Ending Balance, Amount at Mar. 31, 2018	$ 3,691	$ 1,649	68,824,144	603,720	(56,291,892)	$ (34,515)	13,106,797
Ending Balance, Shares at Mar. 31, 2018	3,690,648	1,648,657				(19,440)
Beginning Balance, Amount at Dec. 31, 2018	$ 3,785	$ 1,649	68,751,871	344,182	(67,127,122)	$ (57,847)	1,916,518
Beginning Balance, Shares at Dec. 31, 2018	3,784,712	1,648,657				(33,840)
Share-based compensation expense			58,840				58,840
Foreign currency translation adjustment				73,145			73,145
Net loss					(211,986)		(211,986)
Ending Balance, Amount at Mar. 31, 2019	$ 3,785	$ 1,649	$ 68,810,711	$ 417,327	$ (67,339,108)	$ (57,847)	$ 1,836,517
Ending Balance, Shares at Mar. 31, 2019	3,784,712	1,648,657				(33,840)