Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 107,263	$ 270,852
Marketable securities	124,411	0
Receivable from former parent	1,895	5,548
Prepaid expenses	5,239	150
Other current assets	620	787
Total current assets	239,428	277,337
Property and equipment, net	10,612	11,403
Right-of-use assets	11,418	12,747
Restricted cash	1,969	258
Other assets	77	0
TOTAL ASSETS	263,504	301,745
CURRENT LIABILITIES:
Accounts payable	1,567	5,973
Accrued expenses	13,524	16,946
Operating lease liabilities-short-term	6,156	6,098
Total current liabilities	21,247	29,017
Operating lease liabilities-long-term	7,330	8,911
Total liabilities	28,577	37,928
Commitments and contingencies (Note 10)
Preferred shares, nominal value $0.01; 50,000,000 shares authorized at March 31, 2024; no shares issued or outstanding at March 31, 2024 or December 31, 2023	0	0
Ordinary shares, nominal value $0.01; 450,000,000 ordinary shares authorized at March 31, 2024 and December 31, 2023; 16,922,550 and 16,689,740 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively	169	167
Additional paid-in capital	296,606	294,507
Unrealized loss on marketable securities	(74)	0
Accumulated deficit	(61,774)	(30,857)
Total equity	234,927	263,817
TOTAL LIABILITIES AND EQUITY	$ 263,504	$ 301,745