Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets
Cash	$ 2,082	$ 176
Accounts receivable	68	0
Prepaid expenses	1,466	2,132
Total current assets	3,616	2,308
Other assets	970	1,205
Total assets	4,586	3,513
Current liabilities
Accounts payable	3,687	4,372
Accrued expenses	2,291	1,523
Contract liabilities	550	100
Notes payable, net of deferred financing costs	0	565
Convertible notes, current portion	0	4,179
Liability classified warrants	110	2,307
Total current liabilities	6,638	13,046
Notes payable, net of deferred financing costs	0	4,143
Convertible notes, net of current portion	0	194
Total liabilities	6,638	17,383
Commitments and contingencies (Note 11)
Stockholders' deficit
Preferred stock - $0.0001 par value per share; 10,000,000 shares authorized at September 30, 2024 and December 31, 2023; no shares issued and outstanding at September 30, 2024 and December 31, 2023	0	0
Common stock - $0.0001 par value per share; 500,000,000 shares authorized; 4,214,399 and 2,016,045 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	1	1
Additional paid-in capital	133,092	100,863
Accumulated deficit	(135,145)	(114,734)
Total stockholders' deficit	(2,052)	(13,870)
Total liabilities, convertible preferred stock and stockholders' deficit	$ 4,586	$ 3,513