Income Taxes - Schedule of Significant Components of the Company Deferred Tax Assets and Lliabilities (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets :
Net operating loss carryforward	$ 17,097,000	$ 25,206,000
Foreign research and development expenses	7,884,000	6,219,000
Stock-based compensation	1,784,000	758,000
Operating lease liabilities	1,374,000
Accrued bonus	390,000	0
Other	17,000	313,000
Total deferred tax assets	28,546,000	32,496,000
Valuation allowance	(26,647,000)	(32,029,000)
Deferred tax assets, net of valuation allowance	1,899	467
Deferred tax liabilities:
Operating lease right of use assets	(1,371,000)	0
Prepaid expenses	(497,000)	(445,000)
Depreciation and amortization	31,000	22,000
Total deferred tax liabilities	(1,899,000)	(467,000)
Deferred tax assets and liabilities, net of valuation allowance	$ 0	$ 0