CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 23,716	$ 27,957	[1]
Accounts receivable, net	4,054	4,521	[1]
Prepaid expenses and other current assets	1,653	2,016	[1]
Total current assets	29,423	34,494	[1]
Property and equipment, net	3,398	3,213	[1]
Right-of-use assets, operating leases	3,606	3,844	[1]
Other non-current assets	567	533	[1]
Total assets	36,994	42,084	[1]
Current liabilities:
Accounts payable	1,208	1,011	[1]
Accrued expenses and other current liabilities	3,178	3,513	[1]
Operating lease liabilities	1,749	1,645	[1]
Total current liabilities	6,135	6,169	[1]
Operating lease liabilities, non-current	1,857	2,199	[1]
Other long-term liabilities	1,017	1,002	[1]
Total liabilities	9,009	9,370	[1]
Commitments and contingencies (Note 13)
Stockholders’ equity:
Common stock, $0.001 par value - 142,857 shares authorized, 17,226 and 17,226 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	17	17	[1]
Additional paid-in capital	357,055	355,996	[1]
Accumulated deficit	(328,117)	(322,334)	[1]
Accumulated other comprehensive loss	(970)	(965)	[1]
Total stockholders’ equity	27,985	32,714	[1]
Total liabilities and stockholders’ equity	$ 36,994	$ 42,084	[1]

[1] Derived from the Company’s audited consolidated financial statements as of December 31, 2022.