Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 8,581	$ 16,351
Prepaid expenses	623	97
Other current assets	321	1,153
Total current assets	9,525	17,601
Property, equipment and leasehold improvements, net	9	227
Restricted cash - non-current	50	150
Operating lease right-of-use assets		844
Total assets	9,584	18,822
Current liabilities:
Accounts payable	123	617
Operating lease liabilities		396
Accrued expenses	543	1,407
Total current liabilities	666	2,420
Other liabilities		103
Operating lease liabilities - non-current		553
Total liabilities	666	3,076
Commitments and contingencies (Note 5)
Stockholders' equity:
Preferred stock, $0.00001 par value, authorized 1,000,000 at September 30, 2023 and December 31, 2022. No Preferred Stock issued and outstanding at September 30, 2023 and December 31, 2022
Common stock, $0.00001 par value, authorized 250,000,000 at September 30, 2023 and December 31, 2022. 3,105,446 and 2,429,446 shares issued and outstanding	3	3
Additional paid-in capital	264,500	264,362
Accumulated deficit	(255,585)	(248,619)
Total stockholders' equity	8,918	15,746
Total liabilities and stockholders' equity	$ 9,584	$ 18,822