Income taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of reconciliation of income taxes

The items causing this difference for the years ended December 31, 2019 and 2018 are as follows: 

	Year ended December 31, 2019			Year ended December 31, 2018
Tax credit at the federal and state statutory rate		(3,854,992	)		(2,219,152	)
Foreign taxation		(62,163	)		121,579
Permanent differences		1,569,469			1,280,902
Foreign net operating losses utilized		—			(19,347	)
Foreign tax rate differential		1,173			—
Valuation allowance		2,346,513			938,250
		—			102,232

Schedule of deferred tax assets and liabilities

Significant components of deferred tax assets and liabilities at December 31, 2019 and 2018 are as follows:

	December 31, 2019			December 31, 2018
Net operating losses
Net operating loss carry forward		24,023,480			20,556,758
Net operating loss utilized		—			(73,007	)
Foreign exchange differential		68,923			(68,925	)
Net taxable loss		8,876,008			3,608,654
Valuation allowance		(32,968,411	)		(24,023,480	)
		—			—