Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 71,729,000	$ 44,290,000
Marketable securities	20,074,000	15,120,000
Accounts receivable	457,000	755,000
Prepaid expenses and other current assets	1,303,000	860,000
Total current assets	93,563,000	61,025,000
Property and equipment, net	1,739,000	1,847,000
Operating lease right-of-use	7,876,000	5,337,000
Deposits	2,572,000	2,572,000
Restricted cash, long term	150,000	150,000
Other long term assets	717,000	674,000
Total assets	106,617,000	71,605,000
Current liabilities:
Accounts payable	1,108,000	883,000
Accrued expenses	2,584,000	2,227,000
Research and development contract liability, current portion	5,966,000	4,097,000
Operating lease liability, current portion	4,569,000	4,448,000
Total current liabilities	14,227,000	11,655,000
Research and development contract liability, net of current portion	1,204,000	4,018,000
Operating lease liability, net of current portion	3,633,000	1,348,000
Total liabilities	19,064,000	17,021,000
Stockholders’ equity:
Preferred Stock, $0.001 par value; 10,000,000 shares authorized and 0 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively
Common stock, $0.001 par value; 100,000,000 shares authorized; 30,251,083 and 26,562,178 shares issued and outstanding, at September 30, 2020 and December 31, 2019, respectively	30,000	26,000
Additional paid in capital	229,633,000	163,068,000
Accumulated other comprehensive income/ (loss)	72,000	(10,000)
Accumulated deficit	(142,182,000)	(108,500,000)
Total stockholders’ equity	87,553,000	54,584,000
Total liabilities and stockholders’ equity	$ 106,617,000	$ 71,605,000