Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 13,981	$ 12,317
Short-term investments	16,024	41,374
Prepaid expenses and other current assets	1,067	1,273
Total current assets	31,072	54,964
Property and equipment, net	135	190
Operating lease right-of-use asset	71	274
Other assets	44	1,264
Total assets	31,322	56,692
Current Liabilities:
Accounts payable	1,286	2,441
Accrued expenses	8,546	10,376
Operating lease liabilities	73	282
Debt, net	18,746	25,274
Total current liabilities	28,651	38,373
Total liabilities	28,651	38,373
Commitments and contingencies (Note 7)
Stockholders' equity:
Convertible preferred stock, $0.0001 par value; 10,000,000 shares authorized as of June 30, 2024; 10,248 shares issued and outstanding as of June 30, 2024 and December 31, 2023	5,452	5,452
Common stock, $0.0001 par value; 400,000,000 shares authorized; 39,272,434 and 39,093,509 shares issued and outstanding at June 30, 2024 and December 31, 2023, respectively	4	4
Additional paid-in capital	282,123	278,786
Accumulated other comprehensive income (loss)	(5)	9
Accumulated deficit	(284,903)	(265,932)
Total stockholders' equity	2,671	18,319
Total liabilities and stockholders' equity	$ 31,322	$ 56,692