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UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss) attributable to common stockholders	$ 857,790	$ 544,901	$ (250,404)	$ (1,994,461)
Other comprehensive income:
Currency translation adjustment	130,280	(68,316)	142,155	(66,382)
Total other comprehensive income (loss)	130,280	(68,316)	142,155	(66,382)
Comprehensive income (loss)	$ 988,070	$ 476,585	$ (108,249)	$ (2,060,843)

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