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Accrued expenses (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Accrued expenses
Professional fees	$ 181,861	$ 207,917
Compensation and benefits	1,069,340	961,790
Research and development	7,596,925	4,992,311
Other	236,263	480,535
Total accrued expenses	$ 9,084,389	$ 6,642,553

X

- Definition

The carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Also includes obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to research and development costs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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-Publisher FASB
-Name Accounting Standards Codification
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