Condensed Interim Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Capital Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Earnings [Member]	Other Comprehensive Income (Loss) [Member]	Total	Non-Controlling Interests [Member]	Total Stockholders' Equity [Member]
Beginning balance at Dec. 31, 2018	$ 11,700	$ 15,328,285	$ 2,941,889	$ (1,222,573)	$ 17,059,301	$ 2,462,231	$ 19,521,532
Beginning balance, shares at Dec. 31, 2018	11,699,657
Translation adjustment				182,293	182,293		182,293
Net income (loss)			1,011,150		1,011,150	29,264	1,040,414
Common stock issued	$ 12	10,838			10,850		10,850
Common stock issued, shares	12,000
Dividends paid			(590,483)		(590,483)		(590,483)
Stock-based compensation		5,747			5,747		5,747
Ending balance at Mar. 31, 2019	$ 11,712	15,344,870	3,362,556	(1,040,280)	17,678,858	2,491,495	20,170,353
Ending balance, shares at Mar. 31, 2019	11,711,657
Beginning balance at Dec. 31, 2018	$ 11,700	15,328,285	2,941,889	(1,222,573)	17,059,301	2,462,231	19,521,532
Beginning balance, shares at Dec. 31, 2018	11,699,657
Net income (loss)					983,417
Ending balance at Jun. 30, 2019	$ 12,018	16,035,222	2,448,949	(1,096,474)	17,399,715	2,683,565	20,083,280
Ending balance, shares at Jun. 30, 2019	12,017,545
Beginning balance at Mar. 31, 2019	$ 11,712	15,344,870	3,362,556	(1,040,280)	17,678,858	2,491,495	20,170,353
Beginning balance, shares at Mar. 31, 2019	11,711,657
Translation adjustment				(56,194)	(56,194)		(56,194)
Net income (loss)			(27,733)		(27,733)	208,531	180,798
Common stock issued	$ 306	628,714			629,020		629,020
Common stock issued, shares	305,888
Dividends paid			(885,874)		(885,874)		(885,874)
Stock-based compensation		61,638					61,638
Distributions to non-controlling interests						(16,461)	(16,461)
Ending balance at Jun. 30, 2019	$ 12,018	16,035,222	2,448,949	(1,096,474)	17,399,715	2,683,565	20,083,280
Ending balance, shares at Jun. 30, 2019	12,017,545
Beginning balance at Dec. 31, 2019	$ 12,216	16,437,473	2,456,148	(994,610)	17,911,227	2,550,149	20,461,376
Beginning balance, shares at Dec. 31, 2019	12,215,545
Translation adjustment				(98,928)	(98,928)		(98,928)
Net income (loss)			1,264,675		1,264,675	67,015	1,331,690
Common stock issued	$ 25	24,725			24,750		24,750
Common stock issued, shares	25,000
Stock-based compensation		29,582			29,582		29,582
Distributions to non-controlling interests						(143,002)	(143,002)
Ending balance at Mar. 30, 2020	$ 12,241	16,491,780	3,720,823	(1,093,538)	19,131,306	2,474,162	21,605,468
Ending balance, shares at Mar. 30, 2020	12,240,545
Beginning balance at Dec. 31, 2019	$ 12,216	16,437,473	2,456,148	(994,610)	17,911,227	2,550,149	20,461,376
Beginning balance, shares at Dec. 31, 2019	12,215,545
Net income (loss)					2,397,542
Ending balance at Jun. 30, 2020	$ 12,241	16,520,888	4,853,690	(1,024,476)	20,326,343	2,552,002	22,914,345
Ending balance, shares at Jun. 30, 2020	12,240,545
Beginning balance at Mar. 31, 2020	$ 12,241	16,491,780	3,720,823	(1,093,538)	19,131,306	2,474,162	21,605,468
Beginning balance, shares at Mar. 31, 2020	12,215,545
Translation adjustment				69,062	69,062		69,062
Net income (loss)			1,132,867		1,132,867	132,078	1,264,945
Stock-based compensation		29,108			29,108		29,108
Distributions to non-controlling interests						(54,238)	(54,238)
Ending balance at Jun. 30, 2020	$ 12,241	$ 16,520,888	$ 4,853,690	$ (1,024,476)	$ 20,326,343	$ 2,552,002	$ 22,914,345
Ending balance, shares at Jun. 30, 2020	12,240,545