Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details) - Schedule of deferred tax assets and liabilities

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Income Taxes (Details) - Schedule of deferred tax assets and liabilities - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
Net operating losses carry forward $ 33,955 $ 31,688
Share-based compensation 1,689 1,422
Research and development/orphan drug credits 12,638 10,872
Intangibles 7,873 5,942
Others 19 13
Less: valuation allowance (56,174) (49,937)
Deferred tax assets, net