CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 55,934,491	$ 67,808,000
Incentive and tax receivables	1,378,738	9,580,468
Prepaid expenses and other current assets	3,487,626	2,831,392
Total current assets	60,800,855	80,219,860
Property and equipment, net	419,863	385,833
Incentive and tax receivables	751,815
Right-of-use assets	394,205	565,814
Total assets	62,366,738	81,171,507
Current liabilities:
Accounts payable	1,619,697	1,798,813
Accrued expenses	7,598,187	7,896,598
Lease liabilities	213,428	209,068
Total current liabilities	9,431,312	9,904,479
Lease liabilities, long-term	178,672	353,694
Total liabilities	9,609,984	10,258,173
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value; 200,000,000 shares authorized; 47,062,711 shares issued and outstanding at September 30, 2022 and 41,217,537 shares issued and outstanding at December 31, 2021	47,063	41,218
Additional paid-in capital	319,210,944	310,353,595
Accumulated deficit	(266,501,253)	(239,481,479)
Total stockholders' equity	52,756,754	70,913,334
Total liabilities and stockholders' equity	$ 62,366,738	$ 81,171,507

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of 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. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).