Consolidated balance sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 17,313	$ 5,194
Investments		16,048
Prepaid expenses and other current assets	882	606
Restricted cash	25	25
Operating lease, right-of-use asset, current portion	46
Total current assets	18,266	21,873
Operating lease, right-of-use asset		40
Property and equipment, net	19	70
Goodwill	6,330
Intangible assets	79,200
Other non-current assets	2,193	24
Total assets	106,008	22,007
Current liabilities:
Accounts payable	1,190	1,720
Accrued expenses and other current liabilities	3,147	1,631
Operating lease liabilities, current portion	48	33
Total current liabilities	4,385	3,384
Deferred tax liability	3,326
Total liabilities	7,711	3,384
Commitments and contingencies (Note 15)
Convertible preferred stock, $0.001 par value, 5,000,000 shares authorized at December 31, 2023 and at December 31, 2022; 24,610 shares issued and outstanding at December 31,2023 and no shares issued and outstanding at December 31,2022	91,410
Stockholders’ equity:
Common stock, $0.001 par value; 45,000,000 shares authorized at December 31, 2023 and December 31, 2022; 4,885,512 shares and 4,541,167 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively	91	91
Additional paid-in capital	295,376	291,365
Accumulated other comprehensive loss	(63)	(48)
Accumulated deficit	(288,517)	(272,785)
Total stockholders’ equity	6,887	18,623
Total liabilities, convertible preferred stock and stockholders' equity	$ 106,008	$ 22,007